For some reason, after placing my cows in a pen that I constructed, they refuse to do the nasty. I was able to breed one pair but then they ended up like they are in the picture. It appears that they are path finding to some block outside of the pen I have constructed and will not respond to each other after being fed and will not breed. The baby cow I managed to create is not affected. This appears to be similar to the horse bug recently fixed for Java edition