When pausing the game for a break and coming back, unpausing it caused all the time that would have been spent if not paused. Day/night cycle went around about 10 times in a matter of seconds, causing mobs to speed up, and making all items despawn.
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kumasasa
I went looking, and when I searched things like, Pausing, Time, ect., I could only find a thing with minecraft PE. I looked down in recent issues, but did not find any like this, so I made this.
Duplicate of MC-34641 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.