Thank You for the detailed answer! At Blender 4.5 i was fine with the unwrap inplace i used that as primary unwrapping operator since it made the job done, but mostly i'm using these via python like a macro, just to configure and execute them, nothing crazy. As i'm using Blender 5.2 i'm experiencing weird anomalies, so maybe something with my install of addons not good. Now as i checked maybe i didn't install the addon properly, since via Add-ons i wasn't able to uninstall to make a clear install, and i see there are options to uninstall in the "Get Extensions" Tomorrow i'll give it a try, maybe just my install is misbehaving! Thank You for the patience so far! 🙂