hostiles run up but don't attack - just stand there or crouch

[oqhansoloqo]

I haven't had this issue until now.  I am at Nipton Road Pit Stop and there are Jackal Gang Members there.  They become hostile, but don't attack.  They run up to me and either stand there or crouch down.  I killed one to look at it's inventory and it had weapons.  Has anyone else experienced broken NPC behavior like this?

 

EDIT: In this case, I fixed them by disabling and enabling them in the console.  I hope this doesn't happen again though.