Update 2.4.-Working-in-a-Team.md

Author: ccbogel

docs/doc/en/2.4.-Working-in-a-Team.md

@@ -40,6 +40,10 @@ Follow these steps:
 * In the same window, you can control the visibility of other collaborators. Since version 3.8 of QualCoder, contributions from other coders are always visible and editable by default unless you choose otherwise. Hiding other contributors is especially useful for measuring inter-coder reliability, which requires multiple people to code the same document without influencing each other.      
 * This window is also accessible from the toolbar in the code text, code image, and code PDF workspaces, albeit with limited options.
 
+## Warning
+
+Do not keep the project folder on a network drive or in a cloud location, and access that location whilst running Qualcoder. This is a risk of a lost database connection, which would corrupt the database if for any reason the datablase connection is lost while QualCoder is performing a series of database operations.
+
 ## Backups
 
 We recommend that you make a backup before doing any substantial changes, such as a substantial reorganising of codes and categories, merging projects, or merging codes. QualCoder does perform hourly backups (keeping up to the most recent five) if backups are set in the settings.