Hi guys,
I found this right after signing up for beta on Android:
There is a black bar at the bottom of the screen only during video playback and regardless of add-ons or video types, the black bar is the size of the Android navigation bar and shows up permanently during playback even when the navigation bar is not visible.
The wired thing is that the interface is not affected and shows up correctly and full screen with out the black bar, this only affects the video playback.
The last 3 pictures are from kodi 16 for comparison: