When exiting and re-entering a world, all doors are reverted to either how they are placed, or how they were before the 0.50 update.
Even if the chest isn't created by another player the game still crashes.
I just found a topic already posted on this bug.
I also have this issue.
David Barnes
When exiting and re-entering a world, all doors are reverted to either how they are placed, or how they were before the 0.50 update.