possible pathing or agro bug?

playin on ancient mines i use my squire as a waller and on survival nightmare and up the ogres ignore the walls if thre is a gap as thin as the player. i have seen this on pc and xbox the wall was unable to get agro on the ogres. i am unsure if it is an agro issue or maybe a pathing thing (i am no game developer) its just something i came across if there are any ideas on it or if you are able to get the same issue i hope we can figure this out together ^_^