This isn't working the same way it does in vanilla. F&F's companions removes companions from 2 LEVCs when you read their journals. It removes them at level=1 even though one in particular was added as level=4. I can see this working on the LEVC in a vanilla save with tes3cmd (the NPC is no longer on the list). It DNW in OpenMW unless you specify the correct level. I did some rough & ready testing and it LOOKS like vanilla will remove them if the level is anything less than or equal to the level at which they were added, but that could stand to be verified.