I loaded Gearcity and accidentally pressed car designer instead of load game. I immediately went to return to the main menu and this lead the game to crash.
I caught a memory leak a few weeks ago, I think it may cause this issue. As such I'll mark this as testing, if it happens again in 1.11 please post in this thread!
I take back what I said, this is still a bug, Testing tag has been removed.
This issue has been resolved and will be included in 1.12