I am running UE4 on MacOs, and I am unable to control Y rotation in the editor viewport.
Holding primary/left click and dragging up and down causes me to move forward and backward, while moving from side to side controls X rotation.
Holding right/secondary click and dragging causes the viewport to pan up/down/left/right, rather than rotating.
I have reset the viewport controls to default, but I can’t find a way to make right click drag control rotation, so that I can use wasd + qe to control the camera like how every tutorial I have found says is used by default.