If I draw a 2d debug line on the screen from my mouse position, as returned from the player controller, it is always offset from the actual mouse pointer - same Y coordinate, but some discrepancy on the X axis. This offset is constant as far as I can tell - I can hack around it but…
Sometimes its a big offset, seems to tend to be consistent for a while, then change. Doesn’t effect clicking on objects just my 2d code, so my guess is something I’m doing or not doing but what?
The offset is the gap between the constrained game window during PIE and the editor window. I.e if there is a vertical gap at the top to the letter box window then the mouse will be offset vertically by that distance.