@fredo6
@TIG
@Rich-O-Brien
It just got weirder!
I was shuffling various combinations of extensions in and out in an attempt to track down possible conflicts. This time TIG's split extensions (donut, sausage, splitTools) needed to be excluded to avoid a spin but Fredo_Tools can be present. I am sure that earlier I did not have those TIG tools installed when it spun on Fredo_Tools! They are quite old and I don't use them much, so I can live without them.
Further, when I got it launched with those TIG extensions off and Fredo_Tools on, I opened the SketchUcation Plugin Store extension to see when they were last updated and as soon as the store window opened, SketchUp went into spin!
Something is seriously unstable but I don't know what! Every other extension I had in 2025 is installed and, when SU manages to get running, they appear to work correctly.
To answer your questions,
I had let the new migration manager move extensions across from 2025. Then I used Fredo's check for updates to verify that his were up to date (needed the newer LibFredo6). I haven't tried reinstalling other extensions where I appear to have the latest versions - which I would have to do by going to the Plugin Store via the browser rather than the Plugin Store extension. I'll try that to see what happens.
- OK, I tried downloading and installing the latest Fredo_Tools, and SketchUp is spinning on launch again! Stopped the spin when I removed Fredo_Tools again. Could something corrupt be getting stuck in a cache somewhere? Maybe a corrupted json file?
I don't think it is licenses because Fredo's checker reports the correct ones. Why would that be right yet somehow be causing a spin?
I have not gotten any BugSplats.