Ray tracing in VR is crash.

Every time I use VR in UE4 and then ray tracing, the unreal engine prompts me to say ‘The graphics card driver crashes and is reset! Make sure your graphics card driver is up to date. Exiting. . . ', my computer configuration is RTX2070, I tried a lot of methods, update the graphics card will not work, but when I only use VR or just use ray tracing, Unreal engine 4 will not be a problem, how can I solve this problem? ?