In the collision settings inside the hidden actor’s blueprint, set Camera collision to ignore.
So i have a hiden actor with pawn collision disabled and capsule collision disbled my character does not collide with the actor but my camera does. Is there another option?
Tried that but it did not work. One thing that did work was on hide I had to get the collision settings from the capsule and the mesh and set these to no collision. Though I would love for the characters to never get hit by the cam ever even when visible…
Did you change the the collision settings for each component or just the capsule?
Also, is you camera attached to your character in the blueprint?
I’m using the default 3rd player setup. I changed it for the cap and the mesh.
I have a similar issue as well. Even though I’ve set my object to not collide with the camera, it still does. I wonder if this has something to do with the Spring Arm component?
It seems like the Spring Arm doesn’t check the camera collision channel or something.
Did anyone find a work around for this? I am having the same issue - I have set all of my pawn’s capsules and meshes to ignore camera collision, but I still want the camera to collide with the world geometry… Unfortunately it still collides with pawns - cant figure out why
Found a work around - I set the camera collision on the pawns to overlap instead of ignore and that seemed to fix it for the pawns, and the camera still collides with the walls - which is what I want 
Setting all the camera collisions in the character’s blueprint to ignore will work. The reason it’s not working is most likely because the characters placed in the map still have the old settings. Re-set the camera collision for all the characters that are already placed in the map and it should work.
I know this is an old post but I just wanted to note that mpxc is correct. I had this same issue. You need to remember that each character placed into the level is an instance and you can edit the collision on each instance of the character.