NeoForge 21.1.146
Modpack to Test(CurseForge Code Available for 7 Days):
Client: W9TFyYqR
Server: VW5zXiOt

Error:

disconnect-2025-04-17_10.47.57-client.txt

Ahh nevermind, this issue was related to "Concurrent Chunk Management Engine" if u have it both on Client and Server it wasnt allowing u to connect and gave u this error... very odd.