Does there have to be profession blocks? That might be why they are not breeding, there isn't enough profession blocks. I am no expert in villager breeding however.
Having this problem in Survival Singleplayer also.
This isn't where to do so. Please delete your comment from my bug report please.
Just wondering, did you place a solid block in those areas? Helped me fixed other lighting bugs before.
I had that problem too.
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Left Click, you might be out of the game or you are typing in that case push Esc.