Like the title says, I bought the training, retrained my character, and the training disappeared. I can't get it again, either. I imagine it's the same for the other talents too.
Save:
https://www.dropbox.com/s/r6f1bb5ov9ar7mh/Norman%20%28IolfrsRaiments%29%20%2861a037ac-90f1-45e0-9c11-94f3c4ac979a%29%20%28758728726%29.savegame?dl=0