Here is a spot that had a problem it seemed
I was running, and came back to see him having done 2 finds at a location in Silithus and stuck on the last one. He was standing next to some ruins, looking into the corner of the wall at
<Hotspot X="-7189.321" Y="450.5173" Z="26.12689" />
Said he was in combat according to HB but didnt see anything.
I manually moved him to do that last find and he started back up after that. Hopefully that information is helpful.
If you need log from there let me know, looking at it, it appears he did fight something but stopped and just stood in that spot for about 6 minutes until I came back in and manually moved him.
Edit, After looking at it and seeing it do this again, while I was watching, I think the issue is with it getting stuck thinking the character is in combat but isnt, not sure if CC related, but it happened again, and I notice when it is hung you cant mount even cause you just get Stop and Dismounted which I think is the CC doing so cause it thinks I am in combat. (Using SimpleDK)