[da-anda]

So pressing OK when video is playing (bringing up OSD) is creating a modal dialog (i.e. you stop normal video playback controls from working until OSD is closed).
Why are you pressing OK and then trying to jump to home screen?

Because I want to jump to home screen without stopping video playback. Is there another way?

Why are you not pressing "back" instead of "OK" then? Back will bring you to the previous window (just like the ToogleFullscreen action) and from there you can jump to home or wherever you want.