I think I’m just missing something silly, but I’m trying to copy the third person template’s camera aim function. The enhanced input node looks like this in the third person template:
but mine looks like this:
I’m not sure why the action values x and y are missing. I have the IA set to the mouse XY 2D axis in the input mapping, and the input action itself is set to axis2D. I’m using 5.8 if that explains anything.

