This is NOT a bug.
This is a feature. If you would like this feature removed, please use https://feedback.minecraft.net/hc/en-us
Have you tried lighting up the place? If so, it may be due to there being no moisture.
If I understand correctly, this is a feature.
You cannot break blocks in creative with swords, only kill mobs.
[EDIT] It works for some reason now... sorry for that!
I attached my latest log because it is all i can give. While the screen is black, the best I can do is close minecraft. I have tried to force crash while it is blank, but even after 20 seconds it didin't work. Any other suggestions?
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I think the reason why is because it becomes part of the player. I may be wrong, just thinking it may be the reason!
I think this would be how the code works.
The code may not check for Villagers correct time.