I've realised my issue while checking what you suggested. The original starting sorting values did not match on either of the characters. So just complete user error on my part!
Thanks for taking the time to reply and help out, Chris. AC is a grea…
Screenshot of my game
The player controls the small robot character show at the bottom. The bigger character(played by Elaine currently) is my NPC that follows the robot around. Both characters follow the default sorting map for the room.
If she …