Yeah, I seem to recall him doing that.  And walking off the edge of things. 
 
I traveled briefly with Dogmeat.  Since he's a melee fighter, he's always running into the line of fire.  So he tends to take as much damage from me as he does whatever we're fighting.  I have a mod that opens up what it seems Bethesda originally intended, to have Dogmeat as a constant companion, i.e. the original Dogmeat from Fallout, regardless of who ever else is with you.  So now I just use him as a pack mule.  When I can find him.  He likes to wander around Sanctuary and doesn't care in the least about be summoning bell.
 

All of my companions especially Cait run into walls and other objects and keep chugging along marching in place for lack of a better description. You've seen video of Cage swimming around in circles. Go ahead and explain that one to me. The last companion that swam along with me was Nick Valentine in Far Haror.

Dukman
Yeah, I seem to recall him doing that.  And walking off the edge of things. 
 
I traveled briefly with Dogmeat.  Since he's a melee fighter, he's always running into the line of fire.  So he tends to take as much damage from me as he does whatever we're fighting.  I have a mod that opens up what it seems Bethesda originally intended, to have Dogmeat as a constant companion, i.e. the original Dogmeat from Fallout, regardless of who ever else is with you.  So now I just use him as a pack mule.  When I can find him.  He likes to wander around Sanctuary and doesn't care in the least about be summoning bell.
 

 
But this is different........kind of. It doesn't matter where you move him too he turns and runs right back to where it was and continues his non travel but from a different angle. Like he is trying to get to that specific spot that is occupied with something else.  

Zuhl3156
All of my companions especially Cait run into walls and other objects and keep chugging along marching in place for lack of a better description. You've seen video of Cage swimming around in circles. Go ahead and explain that one to me. The last companion that swam along with me was Nick Valentine in Far Haror.

 
Ummm, bragging rights that he can swim? LOL