After long time of ignoring the “issue” I fixed it as well. There was definitely something wrong with the replication. I guess I solved it with RepNotifys from the Weapon/Equipment reference variable. I don’t need a delay anymore and everything seams to work fine. I’ll post my solution (blueprint) as soon as I get a little time. Simply said: Server spawns weapon an sets weapon reference variable which is a repnotify. In the notify function I just attached the weapon like normal. Meybe I also didn’t understand the whole replication stuff at first