Una the merchant was missing for me in Serpent's Crown. Would really like to buy gems...anyone else have this problem/ways to fix without console commands?
Nudanta was also missing for me after I completed Steel Preacher, so I could not hand in that bounty, it remains incomplete.
Both were after the application of the new patch, but I should note that I didn't even know Una existed until after new patch when I looked up if I could buy Velune on the interwebz, sooo not sure if I missed her or she was gone before the patch or what...