The bug

When you teleport away from a leashed entity and then back to it again, the leash knot is not rendered anymore and all leashes are rendered going to near 0 0 0.

How to reprodce

1. Leash multiple mobs to a fence
2. Teleport away

   /tp ~ ~ ~32767
   

3. Teleport back again

   /tp ~ ~ ~-32767
   

   → The leashes are rendered pointing to somewhere near 0 0 0