It happened again. It seems to crash once in a while, and not even under heavy usage, but has not crashed when my pc was scalding hot and the battery was on 20%.
When you say crash, do you mean that it showed a message on the TPT screen, or did it show a Message Box in a different window, or did the window just go away? How were you closing the game, with the X, or by pressing Escape and clicking continue?