https://forums.unrealengine.com/t/does-anybody-know-how-to-fix-d3d-device-being-...
I've used the method written here and I haven't had D3D issues since, it might help you out too
https://forums.unrealengine.com/t/does-anybody-know-how-to-fix-d3d-device-being-...
I've used the method written here and I haven't had D3D issues since, it might help you out too