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Bug
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Resolution: Fixed
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1.16.20, 1.16.40 Hotfix, 1.16.200, 1.17.2 Hotfix, 1.17.40
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None
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Confirmed
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Multiple
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424456
Based on this report and duplicate report MCPE-86843, villagers display the following problems when a world's Time exceeds 2^31, or 89,478 game-days. This would be equivalent to just under 3.5 real-world years of runtime if players never slept in-game; 1.75 years of runtime if they slept every night. Some 1-player sleep systems may cause this issue to occur sooner than it would otherwise.
- Will not sleep
- Will not wake up naturally (they can be woken by the player, but will try to sleep again)
- Will not refresh trades
- May not spawn iron golems
Original summary
Integer Overrun Error causes villagers not to restock.
When the Time goes over 2147471640 (approximate, probably 2,147,483,648=2^31), it becomes negative.
See: 
Once the time is negative, advancing days is applied inconsistently to other times and timers. In particular, villagers do not restock. Villagers would still not restock after breaking and re-placing their workstations, which is what led me to discover this bug.
This can be fixed by setting the time to 0 if it is negative.
This occurred on a realm, so I reproduced it using command blocks for this bug report.
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