diff --git a/apps/web/core/components/common/activity/user.tsx b/apps/web/core/components/common/activity/user.tsx
index 1ba3d03b750..595a960fb48 100644
--- a/apps/web/core/components/common/activity/user.tsx
+++ b/apps/web/core/components/common/activity/user.tsx
@@ -28,7 +28,7 @@ export const User = observer(function User(props: TUser) {
 
   return (
     <>
-      {customUserName || actorDetail?.display_name.includes("-intake") ? (
+      {customUserName || actorDetail?.display_name?.includes("-intake") ? (
         <span className="font-medium text-primary">{customUserName || "Plane"}</span>
       ) : (
         <Link
diff --git a/apps/web/core/components/common/layout-error-boundary.tsx b/apps/web/core/components/common/layout-error-boundary.tsx
new file mode 100644
index 00000000000..74ef8f3fbb8
--- /dev/null
+++ b/apps/web/core/components/common/layout-error-boundary.tsx
@@ -0,0 +1,60 @@
+/**
+ * Copyright (c) 2023-present Plane Software, Inc. and contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * See the LICENSE file for details.
+ */
+
+import { Component, Fragment } from "react";
+import type { ErrorInfo, ReactNode } from "react";
+import { AlertTriangle } from "lucide-react";
+import { useTranslation } from "@plane/i18n";
+import { Button } from "@plane/propel/button";
+
+type Props = {
+  children: ReactNode;
+};
+
+type State = {
+  hasError: boolean;
+  retryKey: number;
+};
+
+function LayoutErrorFallback({ onRetry }: { onRetry: () => void }) {
+  const { t } = useTranslation();
+
+  return (
+    <div className="flex h-full w-full flex-col items-center justify-center gap-3 text-center">
+      <AlertTriangle className="size-8 text-tertiary" />
+      <p className="text-14 text-secondary">{t("something_went_wrong")}</p>
+      <Button variant="secondary" size="sm" onClick={onRetry}>
+        {t("common.retry")}
+      </Button>
+    </div>
+  );
+}
+
+// Catches render crashes from a single issue layout (list/kanban/spreadsheet/calendar/gantt)
+// so a bad group/column shape degrades to a local fallback instead of taking down the whole page.
+export class LayoutErrorBoundary extends Component<Props, State> {
+  state: State = { hasError: false, retryKey: 0 };
+
+  static getDerivedStateFromError(): Partial<State> {
+    return { hasError: true };
+  }
+
+  componentDidCatch(error: Error, info: ErrorInfo) {
+    // eslint-disable-next-line no-console
+    console.error("Issue layout crashed", error, info);
+  }
+
+  handleRetry = () => {
+    this.setState((prev) => ({ hasError: false, retryKey: prev.retryKey + 1 }));
+  };
+
+  render() {
+    if (this.state.hasError) {
+      return <LayoutErrorFallback onRetry={this.handleRetry} />;
+    }
+    return <Fragment key={this.state.retryKey}>{this.props.children}</Fragment>;
+  }
+}
diff --git a/apps/web/core/components/core/description-versions/root.tsx b/apps/web/core/components/core/description-versions/root.tsx
index 9922cd27ac1..0f1a577b2a0 100644
--- a/apps/web/core/components/core/description-versions/root.tsx
+++ b/apps/web/core/components/core/description-versions/root.tsx
@@ -50,7 +50,7 @@ export const DescriptionVersionsRoot = observer(function DescriptionVersionsRoot
     entityId && activeVersionId ? `DESCRIPTION_VERSION_DETAILS_${activeVersionId}` : null,
     entityId && activeVersionId ? () => fetchHandlers.retrieveDescriptionVersion(entityId, activeVersionId) : null
   );
-  const versions = versionsListResponse?.results;
+  const versions = Array.isArray(versionsListResponse?.results) ? versionsListResponse.results : undefined;
   const versionsCount = versions?.length ?? 0;
   const activeVersionDetails = versions?.find((version) => version.id === activeVersionId);
   const activeVersionIndex = versions?.findIndex((version) => version.id === activeVersionId);
diff --git a/apps/web/core/components/exporter/prev-exports.tsx b/apps/web/core/components/exporter/prev-exports.tsx
index 2334a6c159c..f3ebedb41f0 100644
--- a/apps/web/core/components/exporter/prev-exports.tsx
+++ b/apps/web/core/components/exporter/prev-exports.tsx
@@ -4,7 +4,7 @@
  * See the LICENSE file for details.
  */
 
-import { useEffect, useState } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { observer } from "mobx-react";
 import useSWR, { mutate } from "swr";
 import { MoveLeft, MoveRight, RefreshCw } from "lucide-react";
@@ -46,14 +46,24 @@ export const PrevExports = observer(function PrevExports(props: Props) {
     workspaceSlug && cursor ? () => integrationService.getExportsServicesList(workspaceSlug, cursor, per_page) : null
   );
 
-  const handleRefresh = () => {
+  const handleRefresh = useCallback(async () => {
     setRefreshing(true);
-    mutate(EXPORT_SERVICES_LIST(workspaceSlug, `${cursor}`, `${per_page}`)).then(() => setRefreshing(false));
-  };
+    try {
+      await mutate(EXPORT_SERVICES_LIST(workspaceSlug, `${cursor}`, `${per_page}`));
+    } catch (error) {
+      // eslint-disable-next-line no-console
+      console.error("Failed to refresh export services list", error);
+    } finally {
+      setRefreshing(false);
+    }
+  }, [workspaceSlug, cursor, per_page]);
 
   useEffect(() => {
     const interval = setInterval(() => {
-      if (exporterServices?.results?.some((service) => service.status === "processing")) {
+      if (
+        Array.isArray(exporterServices?.results) &&
+        exporterServices.results.some((service) => service.status === "processing")
+      ) {
         handleRefresh();
       } else {
         clearInterval(interval);
@@ -61,7 +71,7 @@ export const PrevExports = observer(function PrevExports(props: Props) {
     }, 3000);
 
     return () => clearInterval(interval);
-  }, [exporterServices]);
+  }, [exporterServices, handleRefresh]);
 
   return (
     <div>
@@ -73,7 +83,7 @@ export const PrevExports = observer(function PrevExports(props: Props) {
             {refreshing ? t("refreshing") : t("refresh_status")}
           </Button>
         </div>
-        {!!exporterServices?.results?.length && (
+        {Array.isArray(exporterServices?.results) && exporterServices.results.length > 0 && (
           <div className="flex items-center gap-2 text-11">
             <Button
               variant="secondary"
@@ -97,35 +107,33 @@ export const PrevExports = observer(function PrevExports(props: Props) {
         )}
       </div>
       <div className="flex flex-col">
-        {exporterServices && exporterServices?.results ? (
-          exporterServices?.results?.length > 0 ? (
-            <div>
-              <div className="divide-y divide-subtle-1">
-                <Table
-                  columns={columns}
-                  data={exporterServices?.results ?? []}
-                  keyExtractor={(rowData: RowData) => rowData?.id ?? ""}
-                  tHeadClassName="border-b border-subtle"
-                  thClassName="text-left font-medium divide-x-0 text-placeholder"
-                  tBodyClassName="divide-y-0"
-                  tBodyTrClassName="divide-x-0 p-4 h-[40px] text-secondary"
-                  tHeadTrClassName="divide-x-0"
-                />
-              </div>
-            </div>
-          ) : (
-            <div className="flex h-full w-full items-center justify-center">
-              <EmptyStateCompact
-                assetKey="export"
-                title={t("settings_empty_state.exports.title")}
-                description={t("settings_empty_state.exports.description")}
-                align="start"
-                rootClassName="py-20"
+        {!exporterServices ? (
+          <ImportExportSettingsLoader />
+        ) : Array.isArray(exporterServices.results) && exporterServices.results.length > 0 ? (
+          <div>
+            <div className="divide-y divide-subtle-1">
+              <Table
+                columns={columns}
+                data={exporterServices.results}
+                keyExtractor={(rowData: RowData) => rowData?.id ?? ""}
+                tHeadClassName="border-b border-subtle"
+                thClassName="text-left font-medium divide-x-0 text-placeholder"
+                tBodyClassName="divide-y-0"
+                tBodyTrClassName="divide-x-0 p-4 h-[40px] text-secondary"
+                tHeadTrClassName="divide-x-0"
               />
             </div>
-          )
+          </div>
         ) : (
-          <ImportExportSettingsLoader />
+          <div className="flex h-full w-full items-center justify-center">
+            <EmptyStateCompact
+              assetKey="export"
+              title={t("settings_empty_state.exports.title")}
+              description={t("settings_empty_state.exports.description")}
+              align="start"
+              rootClassName="py-20"
+            />
+          </div>
         )}
       </div>
     </div>
diff --git a/apps/web/core/components/integration/single-integration-card.tsx b/apps/web/core/components/integration/single-integration-card.tsx
index c6773bb92df..6f638012ba0 100644
--- a/apps/web/core/components/integration/single-integration-card.tsx
+++ b/apps/web/core/components/integration/single-integration-card.tsx
@@ -73,7 +73,9 @@ export const SingleIntegrationCard = observer(function SingleIntegrationCard({ i
   const handleRemoveIntegration = async () => {
     if (!workspaceSlug || !integration || !workspaceIntegrations) return;
 
-    const workspaceIntegrationId = workspaceIntegrations?.find((i) => i.integration === integration.id)?.id;
+    const workspaceIntegrationId = Array.isArray(workspaceIntegrations)
+      ? workspaceIntegrations.find((i) => i.integration === integration.id)?.id
+      : undefined;
 
     setDeletingIntegration(true);
 
@@ -104,7 +106,9 @@ export const SingleIntegrationCard = observer(function SingleIntegrationCard({ i
       });
   };
 
-  const isInstalled = workspaceIntegrations?.find((i: any) => i.integration_detail.id === integration.id);
+  const isInstalled = Array.isArray(workspaceIntegrations)
+    ? workspaceIntegrations.find((i: IWorkspaceIntegration) => i.integration_detail.id === integration.id)
+    : undefined;
 
   return (
     <div className="flex items-center justify-between gap-2 border-b border-subtle bg-surface-1 px-4 py-6">
diff --git a/apps/web/core/components/issues/issue-layouts/issue-layout-HOC.tsx b/apps/web/core/components/issues/issue-layouts/issue-layout-HOC.tsx
index 50a0323a9af..2c6cd65f494 100644
--- a/apps/web/core/components/issues/issue-layouts/issue-layout-HOC.tsx
+++ b/apps/web/core/components/issues/issue-layouts/issue-layout-HOC.tsx
@@ -8,6 +8,7 @@ import { observer } from "mobx-react";
 // plane imports
 import { EIssueLayoutTypes } from "@plane/types";
 // components
+import { LayoutErrorBoundary } from "@/components/common/layout-error-boundary";
 import { CalendarLayoutLoader } from "@/components/ui/loader/layouts/calendar-layout-loader";
 import { GanttLayoutLoader } from "@/components/ui/loader/layouts/gantt-layout-loader";
 import { KanbanLayoutLoader } from "@/components/ui/loader/layouts/kanban-layout-loader";
@@ -58,5 +59,5 @@ export const IssueLayoutHOC = observer(function IssueLayoutHOC(props: Props) {
     return <IssueLayoutEmptyState storeType={storeType} />;
   }
 
-  return <>{props.children}</>;
+  return <LayoutErrorBoundary key={layout}>{props.children}</LayoutErrorBoundary>;
 });
diff --git a/apps/web/core/components/issues/issue-layouts/properties/all-properties.tsx b/apps/web/core/components/issues/issue-layouts/properties/all-properties.tsx
index 96def8e7c47..cd2ffbffc57 100644
--- a/apps/web/core/components/issues/issue-layouts/properties/all-properties.tsx
+++ b/apps/web/core/components/issues/issue-layouts/properties/all-properties.tsx
@@ -179,7 +179,11 @@ export const IssueProperties = observer(function IssueProperties(props: IIssuePr
     issue.start_date && issue.target_date && displayProperties.start_date && displayProperties.due_date
   );
 
-  const defaultLabelOptions = issue?.label_ids?.map((id) => labelMap[id]) || [];
+  const defaultLabelOptions =
+    issue?.label_ids?.flatMap((id) => {
+      const label = labelMap[id];
+      return label ? [label] : [];
+    }) || [];
 
   const minDate = getDate(issue.start_date);
   const maxDate = getDate(issue.target_date);
diff --git a/apps/web/core/components/issues/issue-layouts/spreadsheet/columns/label-column.tsx b/apps/web/core/components/issues/issue-layouts/spreadsheet/columns/label-column.tsx
index 02ae8b669fc..7618b7ec318 100644
--- a/apps/web/core/components/issues/issue-layouts/spreadsheet/columns/label-column.tsx
+++ b/apps/web/core/components/issues/issue-layouts/spreadsheet/columns/label-column.tsx
@@ -25,7 +25,11 @@ export const SpreadsheetLabelColumn = observer(function SpreadsheetLabelColumn(p
   // hooks
   const { labelMap } = useLabel();
 
-  const defaultLabelOptions = issue?.label_ids?.map((id) => labelMap[id]) || [];
+  const defaultLabelOptions =
+    issue?.label_ids?.flatMap((id) => {
+      const label = labelMap[id];
+      return label ? [label] : [];
+    }) || [];
 
   return (
     <div className="h-11 w-full border-b-[0.5px] border-subtle">
diff --git a/apps/web/core/components/issues/peek-overview/properties.tsx b/apps/web/core/components/issues/peek-overview/properties.tsx
index bf280c8088d..8f35cc1645a 100644
--- a/apps/web/core/components/issues/peek-overview/properties.tsx
+++ b/apps/web/core/components/issues/peek-overview/properties.tsx
@@ -131,10 +131,10 @@ export const PeekOverviewProperties = observer(function PeekOverviewProperties(p
           >
             <ButtonAvatars
               showTooltip
-              userIds={createdByDetails?.display_name.includes("-intake") ? null : createdByDetails?.id}
+              userIds={createdByDetails?.display_name?.includes("-intake") ? null : createdByDetails?.id}
             />
             <span className="grow truncate text-body-xs-medium leading-5 text-secondary">
-              {createdByDetails?.display_name.includes("-intake") ? "Plane" : createdByDetails?.display_name}
+              {createdByDetails?.display_name?.includes("-intake") ? "Plane" : createdByDetails?.display_name}
             </span>
           </SidebarPropertyListItem>
         )}
diff --git a/apps/web/core/components/issues/workspace-draft/draft-issue-properties.tsx b/apps/web/core/components/issues/workspace-draft/draft-issue-properties.tsx
index e526909abbf..123d59d7977 100644
--- a/apps/web/core/components/issues/workspace-draft/draft-issue-properties.tsx
+++ b/apps/web/core/components/issues/workspace-draft/draft-issue-properties.tsx
@@ -122,7 +122,11 @@ export const DraftIssueProperties = observer(function DraftIssueProperties(props
 
   if (!issue.project_id) return null;
 
-  const defaultLabelOptions = issue?.label_ids?.map((id) => labelMap[id]) || [];
+  const defaultLabelOptions =
+    issue?.label_ids?.flatMap((id) => {
+      const label = labelMap[id];
+      return label ? [label] : [];
+    }) || [];
 
   const minDate = getDate(issue.start_date);
   minDate?.setDate(minDate.getDate());
diff --git a/apps/web/core/components/profile/overview/activity.tsx b/apps/web/core/components/profile/overview/activity.tsx
index 0b089ba5ca5..95350412afe 100644
--- a/apps/web/core/components/profile/overview/activity.tsx
+++ b/apps/web/core/components/profile/overview/activity.tsx
@@ -45,41 +45,7 @@ export const ProfileActivity = observer(function ProfileActivity() {
     <div className="space-y-2">
       <h3 className="text-16 font-medium">{t("profile.stats.recent_activity.title")}</h3>
       <Card>
-        {userProfileActivity ? (
-          userProfileActivity.results.length > 0 ? (
-            <div className="space-y-5">
-              {userProfileActivity.results.map((activity) => (
-                <div key={activity.id} className="flex gap-3">
-                  <Avatar
-                    name={activity.actor_detail?.display_name}
-                    src={getFileURL(activity.actor_detail?.avatar_url)}
-                    size="base"
-                    shape="square"
-                  />
-                  <div className="-mt-1 w-4/5 break-words">
-                    <p className="inline text-13 text-secondary">
-                      <span className="font-medium text-primary">
-                        {currentUser?.id === activity.actor_detail?.id
-                          ? "You"
-                          : activity.actor_detail?.display_name}{" "}
-                      </span>
-                      {activity.field ? (
-                        <ActivityMessage activity={activity} showIssue />
-                      ) : (
-                        <span>
-                          created <IssueLink activity={activity} />
-                        </span>
-                      )}
-                    </p>
-                    <p className="text-11 whitespace-nowrap text-secondary">{calculateTimeAgo(activity.created_at)}</p>
-                  </div>
-                </div>
-              ))}
-            </div>
-          ) : (
-            <EmptyStateCompact title={t("no_data_yet")} assetKey="unknown" assetClassName="size-20" />
-          )
-        ) : (
+        {!userProfileActivity ? (
           <Loader className="space-y-5">
             <Loader.Item height="40px" />
             <Loader.Item height="40px" />
@@ -87,6 +53,36 @@ export const ProfileActivity = observer(function ProfileActivity() {
             <Loader.Item height="40px" />
             <Loader.Item height="40px" />
           </Loader>
+        ) : Array.isArray(userProfileActivity.results) && userProfileActivity.results.length > 0 ? (
+          <div className="space-y-5">
+            {userProfileActivity.results.map((activity) => (
+              <div key={activity.id} className="flex gap-3">
+                <Avatar
+                  name={activity.actor_detail?.display_name}
+                  src={getFileURL(activity.actor_detail?.avatar_url)}
+                  size="base"
+                  shape="square"
+                />
+                <div className="-mt-1 w-4/5 break-words">
+                  <p className="inline text-13 text-secondary">
+                    <span className="font-medium text-primary">
+                      {currentUser?.id === activity.actor_detail?.id ? "You" : activity.actor_detail?.display_name}{" "}
+                    </span>
+                    {activity.field ? (
+                      <ActivityMessage activity={activity} showIssue />
+                    ) : (
+                      <span>
+                        created <IssueLink activity={activity} />
+                      </span>
+                    )}
+                  </p>
+                  <p className="text-11 whitespace-nowrap text-secondary">{calculateTimeAgo(activity.created_at)}</p>
+                </div>
+              </div>
+            ))}
+          </div>
+        ) : (
+          <EmptyStateCompact title={t("no_data_yet")} assetKey="unknown" assetClassName="size-20" />
         )}
       </Card>
     </div>
diff --git a/apps/web/core/store/issue/issue-details/sub_issues.store.ts b/apps/web/core/store/issue/issue-details/sub_issues.store.ts
index 7410ce30369..74ffad7aaee 100644
--- a/apps/web/core/store/issue/issue-details/sub_issues.store.ts
+++ b/apps/web/core/store/issue/issue-details/sub_issues.store.ts
@@ -166,8 +166,8 @@ export class IssueSubIssuesStore implements IIssueSubIssuesStore {
       sub_issue_ids: issueIds,
     });
 
-    const subIssuesStateDistribution = response?.state_distribution;
-    const subIssues = response.sub_issues as TIssue[];
+    const subIssuesStateDistribution = response?.state_distribution ?? {};
+    const subIssues = Array.isArray(response?.sub_issues) ? response.sub_issues : [];
 
     // fetch other issues states and members when sub-issues are from different project
     if (subIssues && subIssues.length > 0) {