X6 wrong aspect ratio or zooming issue?

I'm not sure is it aspect ratio or some zoom issue, but I noticed that all Kodi HD/SD videos are too zoomed, subtitles however are placed just fine, and changing video size from normal/stretch 16:9 makes no difference .. also I don't see nothing strange under Kodi video output settings. X6 and Kodi home screen looks ok and I don't see such over zoomed issues, only when watching stream.

stock firmware 4.4.2

any advice?
thanks!