I have two movement speed related issues:

1. PC moves double speed outside of combat, both when sneaking or not - not too bad but weird. Maybe he moves too fast in combat.

2. Durance moves half-speed when sneaking - this one is *really* annoying.

 

They have no movement related items equipped and no movement related debuffs.

 

It might have been triggered by moving portraits around during one battle (assassins in First Fires in Act 3) (after I dismissed and hired new companions, so order was not "correct").

When I was moving them, they could have had some debuffs like hobbled but I don't remember such details. I suspect the hobbled debuff was applied to Durance but "removed" from PC making him super-fast.

You're probably right on the money about debuffs being removed incorrectly. It's a known problem, there's a solution here.

Thanks a lot, it worked perfectly.