Pi4 displays 1/4 screen in 4K mode

I'm using a pi 4 connected to an LG 4K tv. When I set the Kodi display to 4K, the display scaling shrinks and covers only 1/4 of the top left of the screen. 1080p and below fill the screen completely. This is the same for 4K menu and 4K video display. Is this a bug or is there a setting that needs to be changed somewhere? thanks for everyones help on the forum so far!