We’re currently working off of 4.8.2, and I’ve found that when re-sizing the View-port in the standalone version of the game, it causes the mouse input to be offset in UMG/Slate.
It seems as though the new view-port size/Resolution is not being updated in Slate/UMG, and is using the old size to calculate the mouse location, which is incorrect.
Has this been fixed at all in newer versions? if so, what change-list in the Git Repo is the fix?
I addeda UMG button to the center of the screen and then using the “setres” console command I tried setting the standalone window to different resolutions. Each time the UMG button would respond to my click when I clicked the center of the screen. If this is not the behavior you’re seeing could you provide reproduction steps for me to create the same setup that you’re using.