Yeah, I think I managed to have them selected at the master level and moved them to my global, non-scrolling HUD layer. I have nfi how or when I did this, but I fixed it by going to an older save that had all the correct instances and just selected all and pasted them into the newer version.
All fixed. I gotta be more careful.
Is there a way to permanently lock a specfic layer so no new instances can be added? Even with it locked, I'm always adding things to that damn HUD layer by mistake.