path tracer with quadro p620

Hi,

sorry but here is something idon’t understand about my path tracing. when I first tried twin motion on the upper version, it was working very well. Then, I restarted TW and it was blocked on “inable”.
Nvidia’s support tells me that my quadro P620 GPU dont works with the TW path tracer, but I can’t believe this answer, it was working before…
I suppose that it is a problem with my GPU but i can’t find what happened.
thank you for your help !!
sorry for my english I’m french…

Make sure you have DirectX 12 enabled in the settings of TW.