In Oxenfurt, I located the Armorer and Blacksmith shops to get some new gear but the owners are nowhere to be found. I tried visiting different times of the day to no avail. Is this a glitch that can be fixed? Any help would be greatly appreciated. Thanks.

Okay, this fix from GOG.com Support worked for me: Open the Galaxy Client, click the game and use the MORE>Manage Installation>Verify/Repair function and check if the issue persists. I then meditated until 6 a.m. and then the Armorer and Blacksmith appeared.

Hi everyone. Seems like with the patch 1.22, some file got corrupted, and the spawn nodes or ID-s of some npc-s were messed up. Just repair/verify the game from the galaxy client. Also note, that the verification fixed the Apiarian phantom quest bug where the npc with the cellar key wouldnt show up when you tried to enter the cellar. Fixed some Abandoned sites as well, where monsters wouldnt spawn.