OK, have tested it for a while with autosave disabled. I had been in the image editor for a little bit changing some stuff (I got lots of sprites). Exited it and pressed F5 quickly as I usually do to see how it looks in game. Game crashed/closed.
It seems if I manually save every 10 mins the game will NEVER crash. But if I am not careful, it will seem to crash if I don't manually save?
Is there any sort of logs or anything I can supply? I would give out the cap.x but I am in the early stages of a game which I want to keep secret for now.
edit:
OK. I thought I had found a pattern but I have been changing the resolution on my game for 5 minutes after saving and it crashed on me.
It is still worth noting that when I save my game, I still do not see a dialogue indicating that my game is saving. I remember seeing a progress bar before this issue.