I get crashes (not CTD though) almost all the time I use round camera hat on my Saitek X52 in the external view - an error pops up with “Memory can not be read from address … whatever”, with current SU9 and plain default, NO ADDONS AT ALL. It started in former SU8, but was only at complex photo sceneries …
SELF-UPDATE: THIS was the source of my crash-problem:
So I simply remapped default settings for FREELOOK on MID-BUTTON to RIGHT MOUSE BUTTON - this is a nice workaround for existing bug - conlict between mouse free look and joke hat.