Should be fixed now in 1.5.11
I can confirm that I was able to continue (and complete) Taliya's storyline with this update. However, when I had the first "duel" minigame with her, the game reset my swordsmanship, archery and magic back to level 3 (but kept the XP thresholds for them all, so training them back up took much longer than it normally would).
Also, the gallery appears to be bugged for me; I get "Exception: Grid overfull" when trying to access it from my current save. I can send the full error log to you if it's helpful.