Put the summary of the bug you're having here
What I expected to happen was...:
It shouldn't have closed?
What actually happened was...:
I was on the forums for a server, locking threads, and posting updates, and the game forceclosed.
Steps to Reproduce:
1. Play/stand still
2. Happens randomly.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-18738. You can view all information known about this specific crash at MCX-798.