Dorgami

This issue is still not fixed in 20w20a

This is s till not fixed in 20w20a. Flowerpots must be included aswell in this list. Usually mobs get stuck on these blocks

Yes I can confirm that I've seen this aswell.

Yes this still exists in 1.15.2 and in the latest 1.16 snapshot.

This issue exists in 1.14.3 and I know to which Villagers.

This bug occurs on villagers who had 'forgot their workstation' randomly before 1.14.3 and now behave like nitwits but still have the profession outfit and trades. The trade UI opens for a split second and immedeatly closes. The game thinks they are Nitwits(because they're acting like one) but they're really not because they: 

1.Were employed.

2.Have been traded with.

3.Their workstation station has been destroyed(forgot their workstation location).

I confirm that this is in 1.14.3 anad that it happebs to me aswell, I first noticed it on Blaze Powder.

Unfortunatly the.seed I promised to give is lost due to unexpected corruption. So i cant promise a seed, unless I find one.nI will deffinetly post it. Tell me if you need it

Yes deffinetly@Michael Wobst

I think this bug exists because the old sneaking from 1.12 and prior used to be only one frame, so it didn't used to be a bug in the past.

Issue is not fixed in Minecraft 1.14.3 pre-4

Sometimes villagers lose interest in their workstation and let other villagers take his job but leaving the original villager employed forever. They will never try to go back to the workstation since they've been traded with. 

This bug hasn't yet been resolved in the latest snapshot for 1.14.3 (1.14.3 pre-4).

This issue is still on 1.14.3 pre-3 and I confirm it aswell.

Even if the villagers not losing their proffesion is an 'intended' feautre, then why is it dofferent in Minecraft Bedrock? Ive seen gameplay and it shows that when a villager has been traded with once(but not leveled up) he still was able to switch professions.

I think the feature brings some issues regarding villager AI.

Yes but if you broke a workstation for a villager that you already traded with, he will forever look for a workstaion/job? He will never lose his profession because you traded with him, leaving him with broken AI forever?

DockWonder, read the issues that this feature brings in the comments

lol thanks mod i was very nervous when I was creating this issue. That's why most of my comments are edited 

@Joseph_Landis Im genuinely confused from your comment. I don't think that has to do anything with this issue? Also, no one mentioned breeding.

Sorry 😛

I had a case when I built a Library for this village and employed 2 nitwits to become Librarians, one of them had a Fortune 3 book, I traded with him and I left the village and went to my own base.

Sometime later I come back, the expirience bar is empty and there are completely new trades, now he had a flame enchanted book. The other librarian I traded with stayed the same and he kept working on the Lectern I placed for him. I played today again and I see the villager who changed his trades (the librarian) not working next to his other librarian villager, but he talks with other glitched employed villagers during the day. Note that no other villager took his place as a Librarian.