So I was playing my Arch/Heals Debilitator. I logout, and log back in with my scrapper. The Archery powers were still on my bar. Bar 2 with my normally healing powers was empty. I try to attack with my archery power icons, and my scrapper takes out a bow, but nothing happens. My MA powers were greyed out on the Powers tab, and I was unable to select, or drag them to my bar.
Closing the client completely, allowed me to login with my scrapper, and his normal MA/Iron powers