(Fixed... sort of...)
So, I have found a workaround while faffing about. So it appears that the game only crashes if I try and click anything while the game is frozen. If the game freezes but I leave it alone for 10-20 seconds, the game resumes like normal. But from what I can see, this process repeats itself.
Again, the problem isn't gone, but I can at least start; just have to be bloody careful while playing.
Because of how these crashes appear to be on a kind of random timer, I believe it might have something to do with the engine's usage of memory, but that is just my guess.
Plez fix.
Thanks