The cd/aoe/on/off toggle buttons seem to disappear permanently if I log into a class that is unsupported (Frost dk), and log into a class that is (Sub Rogue).

Reloading, turning it off and on, unlock/lock, nothing seems to bring it back.

Requires complete removal + reinstallation of the addon.

Fixed in 68e3957
I'll make a release for Curse soon.

Until then, you can reanchor with /aer resetbuttons.