Even with a large pen, sometimes mobs will just clump together in one corner and clip each other through the fences. I've also logged out, logged back in, and rabbits were outside of the pen.
TBH I've had similar problems with fences across every version of Minecraft since sometime in 2012. I've just stopped using them, because there's always something weird happening with them.
Yeah, I've seen this in pretty much every version of the game since I started playing it a few years ago. Fence corners can trap multiple animals and they just can't move. Very annoying.
Even with a large pen, sometimes mobs will just clump together in one corner and clip each other through the fences. I've also logged out, logged back in, and rabbits were outside of the pen.
TBH I've had similar problems with fences across every version of Minecraft since sometime in 2012. I've just stopped using them, because there's always something weird happening with them.