Attempting to connect to a modded LAN world with an identical modlist results in the player being disconnected shortly after loaded in. This has only been tested with two users and no other mod seems to cause this problem. Only did the disconnection occur when both users had and enabled CPM.

One user using CPM can join and it renders all models from themself and the other player, but if both users have it the joining user will be disconnected. I'm wondering if there's a setting or something i missed in setting this up because I'd rather not play without it.

Unfortunately it seems this issue persists in 1.16.5