James, if you go into my shop off Therka market, then just look at all the shelves and stands, then press e on each of the stands you’ll be almost guaranteed to hit at least one gray one. Portal out and back in and a different one will be grey, or even just exit the shop stand and hit e again and a different one might be grey. I feel like there’s about a 1/30-1/50 chance for it to roll grey. Since I have so many in my shop you see it pretty often. Let me know if you can’t reproduce this and I can make a video and/or provide logs too.
Again, just moving the atlas to a different slot, or into/out of a smart stack seems to re-roll it back to working almost every time.