Yes... known problem. I would say check the archives, but search doesn't work.
As I recall, all you need to do it to remove the savevariables.lua file for the character that has the problems. It is under My Documents, Runes Of Magic folder, then character name folder. Make sure you can see hidden, since Runes Of Magic folder is hidden by default.
-- Rustyx --- 92R / 92S / 92M on Reni (Guild KnightShift). Yes, running the new FOTM R/M, cause I am not elf enough to be WD/S.
Oh, and people who have more than 3 classes are clinically insane.