My general experience is that if I only take darks and flats with just the main camera in operation, I see no crashes.
It mainly occurs when running a real session with guiding.
I have not tried imaging without guiding, but I can try to carry out the steps you suggest next clear night. It may be a while though. Weather forecast is not good...
But meanwhile I can try out as much as I can inside.

BTW. Yesterday evening I had 5 consecutive crashes. They all occurred after the second or third image had been downloaded.
On the sixt attempt everything worked very well, and I could gaher about 5 hours of data.

/Odd

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