Fragments in DX12 after SU11

Hi,after Simup 11 and switching to DX12 with Radeon 6700XT, Adrenaline 22.10.3, 4K, I noticed fragments (vertical stripes) on the inside and outside of the cockpit windows and the propeller circles when it rained. Has anyone found anything similar? Can you still tweak the graphics settings, or is that due to the DX12 beta? Thanks. Arndt