Camera Movement with Mouse-drag gone haywire after rotating 45 degree Yaw

Hi everyone,

Sorry for the potential trouble! I am very new to Unreal. I am attempting to set up a simple city-building project with an Isometric view. Following is my camera blueprint with mouse drag mechanism:

Because it is Isometric, I need to rotate the Camera at 45 degree Z (Yaw).

Before the rotation, my screen movement with mouse-drag works perfectly fine (up/down Vertical and left/right Horizontal orientations).

However, after the rotation, the movement still follows the default Vertical and Horizontal directions when I ‘mouse-drag’ my camera. In other words, the camera has a 45 degree offset in all 4 directions.

I tried various proposed methods on other forum posts but still can’t get the this resolved. Can someone please help?