During Bekarna's Folly quest, when I finished everything on the observatory and returned to Arkemyr's manor, I cannot find Arkemyr. One thing I think might have caused this is after I first accepted this quest from Arkemyr, I attacked and killed all the automatons and most imps in another room. And when I was out of combat, I went in the study (room) and saw Arkemyr alone and not aggressive so I thought everything is fine and left and that was a long time ago.
And there is another bug within this save: Concelhaut's Parasitic Quarterstaff is stuck on Aloth and I can't un-equip it or equip any other weapons or switch weapon.
Save file and output_log.txt in a ZIP file