Players on my server are reporting invisible leads attached from their horses to fence posts. (Client on server PC seems unaffected)

What happens:
1- Player attaches lead from horse to fence post as normal.
2- Player goes underground for a while.
3- Player returns to surface to find that the lead on their horse is invisible though still attached (Rope coil around fence post is visible, just not the actual lead between horse and post).
4- Player is unable to remove invisible lead.
5- Player must reconnect to server for lead to become visible/removable.

Note: Client on server PC seems unaffected and can see/interact with other players leads.

Frequency of Bug: Several times to at least 2 different players (Edit: 3 players including client on the server PC). One player was connected via internet and another through local network.