This is a new one. I've seen banding and clipping, but not a general color cast.
The ProPhoto/OpenGL bug in Photoshop has been well known for a long time, even to PS engineering staff. It was first reported on the Adobe Photoshop forum several years ago (IIRC CS5 was then the current version). At the time they said they'd "look into" it, and since then - total silence and the bug is still there.