AI keeps trying to move in wrong axis

I am working on a side scroller, where it’s played on the y-axis. However, for some reason all my ai characters are not trying to rotate (facing the camera) to move to the player instead of walking right to him. I tried Find Look At Rotation, but the character always rotates back when trying to move, like he wants to travel on the (locked) x-axis.

4.1.22a

This is what happens when the NPC tries to move to the player

Anyone?