Did you not see that DxO strongly recommended against installing Nvidia driver version 616.56? That’s partly because it doesn’t play well with DxO apps and also because it causes many other problems in Windows systems:
They closed a thread on problems in Pure Raw using this driver version with that post. It’s rare for DxO to participate in these user forums like this. I would take their warning seriously and avoid that driver update. They recommend 610.88 instead for now.