It’s so very odd. I’ve not had a single CTD in the Arrow that I haven’t known 100% what the cause was, and in each one (only 3 of them) it was attributable to a scenery mod.
I have the 750 Premium which I use all the time, and the 530 mod installed.
I was getting a number of CTD with the Seneca V and traced that back to a moving map thingy (gave me a moving map on my iPad) I was using. Even using that with the Arrow wasn’t causing it to crash.