I started a single player game with no real plans in mind for the build. Several levels down the road I decided to go for the Red Dragon Disciple PrC. I took a level in Bard to meet the requirements, but when I gained my next level the game wouldn't let me multiclass into any class I hadn't already taken.
I thought it might be a conflict with one of the PotM files, so I tried installing the game to a new directory without he mod, but I've encountered the same problem. If it was a problem with the mod files, is it possible it carried over in the save?
(In case it matters, I'm playing Shadows of Undrentide my character is a human Ftr 4/Rog 3/Brd 2.)
(ETA: In case it matters, I'm posting this at 4 am... I should probably sleep. T_T)