Bug: Rollback Several Times "Your not the Owner of that instance"

In Short, Was being at a Belfry Map at 19:57 with a friend
Was dropping from a Strongbox 2 Divines (duo Atlas i got 2 Strongbox stuff)
We was at Paris, We dropped the Divines, Finished the map, Teleported. God kicked out with basicly everyone at the same time. 2 Div"s gone, Map Completion gone aswell as others.

Also i got weird Performance Issues at all,

i have 2 Setups: 1st: 4090 ichill Frostbite, 13900K 64gb 6000mhz ram m.2 ssd"s etc

i cannot play on DirectX12 without any issues Freezing Crashes etc
so i switched to a way weaker setup with 10900KF 3080 MSI and it works like a charm.

Please help us out.