Tonight was update night, so I crossed my fingers and installed the 22H2 update for Windows 11.
And, somewhere during that installation, it "automatically" updated my AMD RX 6700XT driver to one dated July 25, 2022, and promptly re-introduced the color bug in Vegas 19. This also broke the AMD Adrenalin control panel, which claimed my driver was incompatible.
So, re-installed 22.5.1 and everything seems to be back to normal.
WindowsUpdate installs driver updates by default unless you disable them in group policy. You can google it for details on a how-to. Fix is the same for win10 and win11.
Thing is, this happened only during the actual 22H2 install (system was otherwise fully up-to-date and rebooted before installation began), and I’m aware of that “feature” and checked immediately after, and no update to AMD drivers was listed in update history (so it could not, for example, be rolled back). I’m sure the update came through Windows Update, but it was not a “regular” installation.
A lot if things seemed to be re-initialized after 22H2. For example, I got the prompt to install my motherboard’s tools again, which previously has only happened once when the system was first built.
Here on laptop the same things after Windows 11 update from 21H2 to 22H2 with my Intel drivers.
I did the update and had no issues at all, everything just fine. So complex how things will affect one PC but not another.