White border around Adobe Acrobat window

White borders appear around the program window when I open pdf files with Adobe Acrobat. This happens both in dark and light modes of the display theme. Problem appears both in fullscreen and normal window modes. In the corner of this "white border" i can press the phantom exit button and it closes the app just like the native exit button would do normally. This glitch/bug annoys and is actually hard to work because sometimes the normal window exit button stops working and only this "phantom red button" would be pressable. Tried turning off the security mode(all buttons there are turned off) and tried various compatibility options. Nothing seemed to help.