CTD cutting engine or turning avionics switch off

This is a continuation of my crash when exiting to the main menu thread. Now I’m getting a CTD when cutting engines or avionics. Sometimes it also happens after turning on to the taxiway.

I’m thinking these are related, perhaps something involving the log book or sim garbage collection.

Prior to the Top Gun update I was CTD free.

I remember now having a similar issue about 2 months ago. It went away after I did a full reinstall. So I just uninstalled and deleted every official trace of the sim I could find. I’m keeping all the community content in place so I can test isolating this to just the official sim.