Dynamo for Revit background preview not available

I have Revit 2020.2 with Dynamo Revit 2.3.0.8352 instaled.
DirectX 12 (DxDiag 10.00.19041.0546)
GTX 960 GPU with latest drivers instaled
Procesor is i5 10600K with Intel UHD Graphics 630
I have instaled DirectX End-User Runtimes (June 2010) from Download DirectX End-User Runtimes (June 2010) from Official Microsoft Download Center

And still no background preview available

How can i fix this?

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