I can reproduce this pretty easily. I click on a reocurring event and it either crashes immediately, or asks me if I want to edit a single or multiple event and then it crashes.
By crashing i mean it locks up for a long time and I have to force quit or kill the process.
This did not happen in V7. I’ve downgraded but V7 had a lot of limitations and frusturations so I tried v8 again
The cef log often has
[0908/082657.783:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0912/071848.515:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0914/123459.293:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0914/123615.457:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0914/123714.276:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0915/123338.608:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0915/134528.449:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0915/155212.513:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0918/195435.419:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0919/233711.058:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0920/135010.211:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0920/140923.276:ERROR:latency_info.cc(147)] RenderWidgetHostImpl::OnSwapCompositorFrame, LatencyInfo vector size 103 is too big.
[0921/145041.087:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0921/190234.936:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0922/153304.911:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0922/155007.047:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0922/155855.980:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0922/160132.561:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0926/132001.874:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0928/104031.063:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0928/105738.204:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
[0928/114926.371:ERROR:viz_main_impl.cc(169)] Exiting GPU process due to errors during initialization
the sqlite log often has dozens of these lines.
09/28/2021 18:49:28 283 recovered 1 frames from WAL file
It does the same thing when I try to create a new event, the popup box for standard or online meeting comes up and then it locks up.
I enabled diagnostics for gcal, are these added elsewhere?