I wanted to dps a dungeon on my warrior, so I switched to my fury offspec and I noticed several abilities had vanished from my bars.
Thinking back, I’m pretty sure they are the same abilities that I trained last night, while in prot spec.
EDIT:
Just tested it, and saw the bug.
Visit your class trainer and see if any abilities have further ranks available for training.
If so:
- Put that ability on an action bar if it isn’t already.
- Switch specs.
- Train the ability.
- Switch specs back, poof the ability is gone from your action bar.