I also have been having this issue in my shared realm. I had 3 that were tied up fine until I went into the Nether. Once I returned, all their leads had broken and they were no longer following me (with our without the lead). One I even tried to tie up in my house and it went through the wall of my house and broke the lead once it was far enough away outside.
slund312
I also have been having this issue in my shared realm. I had 3 that were tied up fine until I went into the Nether. Once I returned, all their leads had broken and they were no longer following me (with our without the lead). One I even tried to tie up in my house and it went through the wall of my house and broke the lead once it was far enough away outside.