Oops, sorry about the way. I tested it but doesnt seem to work even after pressing space. It seems its something to do in my end anyways rip.
Looks like your OS is reporting wrong window position values. It only seems to be the reporting that's bugged since the debug text below displays the correct absolute position of the window.
I see two possible solutions to this problem. I could add a shortcut to set the window position to 0, 0 (top-left corner of the screen). Another option could be to save the window position for each session for both the launcher and updater.
Would the shortcut be good enough or should the window position be saved as well?