I have a potentially stupid question with hopefully an easy answer that I'm just overlooking.
I haven't used my XTR in a few months and when I last used it, it was completely fine. However, I recently took it out to shoot and looked through the viewfinder to see that the ground glass with all frame lines as well as the image that I was seeing were flipped 90 degrees. I've linked to some images to show what it looks like to look through the viewfinder.
It doesn't look like anything has broken or that the ground glass has slipped. I tried adjusting the viewing horizon, which only moves the image a few degrees. I'm hoping I'm just overlooking some basic feature of the camera that allows you to flip the orientation of the image.
https://imgur.com/a/arwUMR6