the update is now live, try it - achievements should be working now. Korean language has also been fixed. A couple of small graphical touches like the new goblin tent, monk's abbey and some other buildings. Hope you like it.
Royal Bounty HD update for April 3, 2017
Achievements Fix
View all patches · Build 1731605 · Last edited March 15, 2019 – 18:51:16 UTC by 
Wendy
Patchnotes via 
Steam Community