This driver (hotfix) has the following Fixed Issues
A random blank or colored screen may be experienced intermittently on some Radeon RX 400 series products while gaming.
This for me is not actually correct. My problem always happened when the PC was idling and very little load. This is the same for many users. When playing games this issues has not been the norm so I think the comment is incorrect, however the issue has been fixed afaik.