Video Player OSD scaling out of screen

Hi,

I’m running Kodi 17.1 with Estuary on a Intel NUC with Windows 10.
I like this new skin a lot. But when playing a video file, the OSD scales out of the screen.
Part of the OSD Controls are out of the screen border on all four sides.
All other parts of the skin fit into the screen.

If I go to System Settings / Display / Video Calibration, the arrows match the screen corners perfectly and the retangle is a perfect square.
Screen Resolution is Full HD, 1920×1080.
Display Mode is Full Screen
Full Screen Window is ON.

In the Player Settings, the minimize black bars option is set to OFF.

The NUC is connected via HDMI to a Sony A/V Receiver and my TV is connected via HDMI to the A/V Receiver.
Has anyone a hint, why the video player part of the skin does not fit into the screen?