From TWW PTR, the bug that displays water and some grassy textures in a blue tone is back. In the past, toggling the Graphics API from auto-detect to Metal or vice versa or graphics card from auto to the actual card or vice versa seemed to get rid of it temporarily, and still seems to clear the blue graphical glitch. However, the bright green graphics on the landscape on the new campfire site are not fixed by this workaround. See both blue and green glitches in the campfire login screenshot:
I’m getting blue also, mainly in places that should be black, smoke, shadow form, and so forth. It comes and goes, but seems more often lately. Scan and Repair seemed to help in the past, though it took hours, but not today. Water is really looking solid blue.
I am on an old 2017 iMac, 27" screen, but I boosted the memory to 48 GB.
I get this on my iMac Intel as well. I’ve been kludging it by setting my graphics to 5, and then back down to 3. So I’d say bump up your graphic settings two, and then go back down two. That usually stops it for the rest of my session.