Hi
Bitdefender started reporting false positives for SUbD last week. I've submitted a False Positive report to them, hoping they'll update their definitions soon.
In regard to your recent post: can you check if C:/Users/Username/AppData/Roaming/SketchUp/SketchUp 2021/SketchUp/Plugins/TT_SUbD/libraries/2.1.7.0/2.7/win64/SUbD.so exists on your machine?
If it does, and you still get this error, can you ZIP up the C:/Users/Username/AppData/Roaming/SketchUp/SketchUp 2021/SketchUp/Plugins/TT_SUbD folder and send it to me please?
(False positives from AV software is such a pain to clean up.)