I've got the same bug, and several people are commenting about this in the Steam forums too.
I don't know how to insert a screen shot into the post. It looks like these are set up to have links to online images, but I haven't had an online photo sharing account since photobucket stopped being free. My screensaves are all saved on my computer
To describe the bug: after the fight with undead in the mountain pass--where you find the note about Wyll's dad--Wyll gets an exclamation mark over his head. When your character initiates dialog, he simply says "well met." The only dialog options are to ask him to break party or "leave."
