OpenPHT zooming in (bottom half of screen) 4k files

1080p files work perfect, but anytime try to play a 4k file, the picture is zoomed in and it just displays on the bottom half of the screen (instead of the image being centered with the horizontal black bars on top and bottom). PMP plays the 4k files without any issues.

Any ideas what could be causing this? I prefer OpenPHT as I really like the black edition skin.

Thank you

You have to have OPHT adjust display resolution/refresh on playback in Advanced video settings.

ok I give it a shot. thank you