Thanks for your help, here's some more detail about what I'm seeing:
- I launch GC, nothing happens for about 5 secs and system freezes.
- Then I see the normal small launch progress percentage dialog box which counts up to 100%. Then my system hangs again for about 20 secs with my MacOS desktop unresponsive.
- After that 30 secs, I see the Activities view. Everything there is very responsive and behaves normally; I can select the various tabs for that activity and I can switch quickly between activities normally.
When I try to import an activity by selecting Menu Activity -> Import from file. The MacOS file picker window launches but hangs (half-launched and semi-transparent) during the launch animation for about 10 secs and then finally fully displays. When I import an activity from a file at that point it behaves normally.
The really bad news is when I try to switch to Trends view by clicking Trends button, my entire system completely hangs and is unresponsive for about 5 mins with only very short <1 sec intervals where some other window event can take place. I don't see the small blue progress bar at the top of the window (I know which one you're referring to)
FWIW, I tried running the "top" command in a terminal window and in the short breaks when it can refresh I see the process using the most CPU is "tccd", which I read has something to do with managing permissions to access my contacts. (Not sure if that's relevant or not).