Updated an MSI MSI Radeon RX 590 8GB GDRR5 Memory Graphics Card with Version 20.11.3 about noon today. After the update I resumed work in Blender 2.91. No files would render. All objects render as black outlines. No setting were changed in Blender. The 3 Blender files I worked on this morning tat rendered perfectly this morning would no longer render. Nothin in my system changed other than the update to 20.11.3.
Unless a solution exists I would like to revert to the previous version assuming that is possible. Have not determined how to revert.