The group window seems to have extra spacing between group members. So each group member is a little further away than it should be from the next member. So the 6th group member is actually cut off, and the space that it was in (Above my raid window) it still the same size as it has been for years, so I know that it's the group window itself (outside of other people in guild having the problem).
The 2 for group member 2, used to be directly below the HP/MP bars
I've had my UI setup like this for many years never unchanged, and it's the same for every guild member using profit (I've also tried deleting it and letting the updater get it again to make sure it wasn't something I broke)
Edit: With the raid window up
PS: I joined a random pug just to get a group for screenies, so ignore the classes and stuff lol