Figured it out:
I have copied the Third Person Character blueprint asset (from the starter project) into my main project, because I need a simple orbit camera (no movement, only rotation, no local character mesh to look at). I have set the mesh to [None] and made it invisible, then added a Spring Arm component with a child Camera Actor. I have added zoom functionality to this, via the Mouse Wheel Axis event. The zoom event fires perfectly fine whenever I use the mouse scroll wheel…
However, for some reason the Mouse X and Mouse Y events never seem to spit out what my mouse is actually doing, and instead, is always 0. I have double-checked all of my settings, comparing them to the starter project, and most everything appears to be identical… So what could cause this to happen?
Can you please convert that Comment to an Answer and accept it to close the ticket thank you.
Done & done