I am still seeing application crashes during imaging runs. Both in the nightly build on the StellarMate device itself as well as the MacOS Stable 3.5.2. Just empirically, it appears to be related to downloading and saving the huge files created by the ASI2600MC. I can get it to crash pretty consistently if I generate a bunch of bias or flat frames without a decent delay between captures. I've also seen crashes during imaging runs (guiding and tracking) on both the SM VNC as well as MacOS remote.
I've seen this kind of crash before - when switching to the summary tab:
(From one of the MacOS crash logs)