Thumbinal mode bug with multiple displays

[onlineapps-cloud]

Is there an existing issue for this?

• I have searched the existing issues.

What's the problem?

Hi, i downloaded sniffnet appimage 1.4.1, and i found bug when i want to enable Thumbinal mode using 2 different display! when i drag sniffnet Thumbinal from one display to another, sniffnet, exit from Thumbinal mode, ad i cannot use in Thumbinal mode from another display, when i click to Thumbinal mode app automatically move to second display.

simplescreenrecorder-2025-09-14_16.48.09.mp4

How did you install the app?

downloaded one of the provided packages

Operating System

Linux

Additional context

OS:

Distributor ID: Debian
Description:    Debian GNU/Linux 12 (bookworm)
Release:        12
Codename:       bookworm

[GyulyVGC]

Thanks for making me aware of this.

I suspect it's an upstream problem with how iced and winit handle the windowing system.

I believe there isn't much I can do other than let the maintainers of such libraries know, but I'll try to investigate.

[GyulyVGC]

From which display are you starting the app by the way? The one on the left or the one on the right? Can you try starting it from the other display and double check the behavior?

[onlineapps-cloud]

hi, no matter from which monitor i started app, i get same results, i tried from left display to start, same issue
also i have this error in terminal when i running the app

error: XDG_RUNTIME_DIR is invalid or not set in the environment.

simplescreenrecorder-2025-09-15_10.09.32.mp4

[GyulyVGC]

Ok thanks for the info... that is just a warning and it shouldn't matter for this particular issue