> For the multiple windows issue in the Task Switcher, it's possible that SH3D is creating separate Java windows in the background. This is a known issue with some Java-based applications. You might want to try launching the program using different Java runtime versions or tweaking the display ...

First - big thanks for the nice program!
Maybe no help actually needed here [:)]

I have two laptop with Ubuntu 22.04.4 LTS and and 24.04 LTS (both KDE)
SweetHome3D 64bit v7.4 (and v7.5 now), on both laptops SweetHome folders are identical (main folder and .eteks) - copied them with rsync.

The ...