We're having the same problems, can't even load up for more than thirty seconds without BSOD.
CPU: Ryzen 2600x
motherboard: MSI B450 tomahawk
Graphics: Nvidia 970
Pretty ridiculous that it's been two weeks and they haven't posted any sort of official update, and if you don't know to look this up there's nothing on the website that indicates this is a problem. Would definitely appreciate some word on what sort of progress they're making or if we should be looking for a refund on the $300 hardware that doesn't work.