Sorry for the late reply, one thing I noticed is that the crashes occurred more frequently when my PC was being bogged down by a lot of programs, however I started using the Escape key instead of pressing stop, and I didn’t get any crashes.
Also I stopped having crashes entirely since 4.5.1, however I’m not sure if that’s because of any changes to the engine itself, or if my old computer just didn’t meet the requirements for the crash again. If it ever happens again, I’ll be sure to post the log.