Still in 1.12.2
I encounter often this bug. It's very annoying.
@Christopher:
That workaround doesn't work for me 😞 (Mac OS X 10.10, java 8, MC 1.8.8)
Still in 1.8.1 😞
I experienced the same issue.
Server 1.8, I used two eggs to spawn two ocelots, I tamed them, then I breeded them, they sit when I right-click on them.
After a while, I tried to breed them again, but they do nothing, there are only the hearts flying. Moreover they don't sit anymore if I right-click on them.
I stopped and started again the server, then I managed to breed the cats and one of them sat when I right-clicked on him. Anyway the other cat still does not sit, neither the baby cat, when I right click on them.
Yes, this is still in Minecraft 1.8, I can confirm.
I was going to open a new issue for this. I get exactly the same bug described here.
Yes, it is.
I played for few minutes, then I hit the ESC button to pause the game. I waited some minute and then.. the crash.
I attached a new crash report for 1.13.1.