Directory not found message prevents keepass from locking

[LeoVerto]

When changes have been made but not saved yet and KeePass tries to save and lock, a DB Backup warning message about a non-existing backup directory can prevent it from locking down properly.

This is especially evident when backing up to network storage devices which may not be available at all times.

[strarsis]

+1, the message can sometimes get behind the main window, unnoticed and block the GUI.
Only when checking the grouped taskbar entry for KeePass the user can notice (and close) the error message.