Character training Q

On the home screen on the left is the character tab button. It says 3+ which seems to indicate that characters need training. But when I go in I don't see any training that needs to be done.

I have no training droids, no shards, no equipment to upgrade, etc... I can't see what any character needs done to them that I am missing.

Any idea what they think I should be doing or is this a bug?