Friends try connect to the server, but nO. They see only: "Server mod list is not compatible" or something. They have every mods and necessary versions.

1.16.1
Forge 32.0.106

https://gist.github.com/Ibirtem/0013a5c0df160712c4c3b43b946eb87d

I think this is a forge issue, but I will ask them and get back to you.

I'm guessing it works if you make a new world, but that's not really a solution. I've seen problems like this with removed blocks not being communicated properly to the client if the world was saved with an "old" set of blocks.

Can you provide the server log, your client latest.log and debug.log? I'll open a forum support post for this.

Seems creating new world not helpful. All my friend go sleep and i cant check right now. A little bit later. I also try bit by bit removing mods, maybe i can find what mod can be cause this problem. I will definitely report the result. And thanks in advance for your help!

Welp, sorry for this unhelpful issue. it's LAN connecting, so here we go i found:

1. I have two friend and first can connect to the new world (in old world - no), but second cant in both (Why? idk and it doesn't matter yet)

2. This friend gebug:
   https://gist.github.com/Ibirtem/50a2fcfc64f377c48697bca5cd17aa41
   and latest:
   https://gist.github.com/Ibirtem/bc903bc36c55d0479b3f1e272bceb830
   (This not clear files, bcz there try to connect in new world and then in old)

AND ther is my debug, when friend try to connect in old world: https://gist.github.com/Ibirtem/6601682c4a3a79e1ed5e8bbeb801e407

Server log i cant give, how i say, it's LAN connection and i dont know how to open console in this way. I hope this all is not useless information Xd