A321 with 65% is shaking like in stall on FL360

Hello IFC, rn i am flying A321 From EPWA to LEMD.
And have 65% of load. But my plane is shaking from turn to turn near ±7°
Current Airspeed is 243kts IAS.
Can anyone help me please with that, because in past i was flying with that, or maybe more weight on FL360 and all was ok…

That’s an issue with the A321 in game
Descending to FL340 or 320 should stop it

For future reference, avoid climbing over FL340 if your load is at more than 50%


As requested