4.26.1 VR Directx12 glitches

Development Platform & Builds XR Development
1

Hi there!
I am having a problem with the next setup - 4.26.1, forward rendering, DX12, 1080TI, VR VIVE pro.
Everything is fine on DX11, but when I switch to **DX12 **i get weird glitches when i rotate my headset. Some frames stucks.
Same at VR preview and packeged game

2

same problem with next
4.27.2
1080ti
VR Vive Pro.
Any idea how to fix it?