Not sure exactly when it happened, but my Pebble pet is missing from my collection. I have the completed Rock Lover achievement (8/25/2024), and I distinctly remember showing off my Pebble companion to my guild mates. The only thing I can think of that might have screwed with my character like that was a race change from gnome to worgen on 11/29/2024. The stable master does not offer me the opportunity to recover my missing companion.
Edit: To clarify, I don’t mean missing as not showing up in the list; this isn’t some kind of addon issue. He appears grayed out in my list and I’m unable to summon him.