My version is 1.1.

First, I just killed all the bandits in Broken Oar Grotto with a Dead Thrall. But when I exited and found the thrall can't leave! I try to in and out, or move to another place, but it dose not work. The thrall still stands inside this grotto. I use console to “Disable” the thrall and then “Enable” him outside the grotto, nothing happens. But when I get in the grotto again and find the thrall still stands inside! Same as use “resurrect”.

Second, I met Derkeethus in Darkwater Pass and he asked me to guard him out. But he did not follow me! He can not climb the helix-ladder. Also, I use console to “Disable” him and then “Enable” outside, he still wanders under the ladder on the origin position.

Is anyone meets same problems?

Well, maybe just my bad luck?

Never had anything like that. Try killing him and using the resurrect command.

Derkeethus is essential, can not be killed. But Disable and Enable also did not work.