Oh and I'm playing in singel survival
I created a new world in 1.9, and after the update to 1.10 I noticed that my villagers won't farm either, they plant crops but nothing else. Also they seem incapable of breeding. I made a new world in 1.10.2 (creative) and built the same breeder both under and above ground and it works like a charm. A shame really since I've built a lot of things in my 1.9 world.
Yes, I've noticed it too. Didn't happen before teh pre-releases. Now it's messing up my sugarcanefarm and mobfarm. Not only slime blocks are affected. You can mine away the blocks (won't get any drops) but they will re-appear when going x-blocks away. (survival)
Still broken in 1.11.2, trying to rename snowballs, levels disappear but item doesn't get renamed.