player desync/lag during boss fights/normal gameplay

Recently me and a friend are having issues with lag, and not like stuttering lag. everything runs fine until for me (the host) my friend just starts running in place on my screen, or just moving in the direction they were before. this is completely desynced from what my friend sees, the game still runs and she can fight and beat the boss but cant get any drops nor return to normal gameplay once the fight is over. On my end the boss will endlessly try to kill my friend (where she is on my end) and i can still damage it and stuff shes just stuck for me.

it makes the game entirely unplayable to help would be greatly appreciated. I didn't see much in the logs except for "Object reference not set to an instance of an object" and when looking in Server.log it shows this*
Screenshot_2025-08-14_214504.png
Was this page helpful?