Mouse cursor freezing in center of screen

Hi,

I’m currently using Kodi 16 on my Austor AS5004T NAS. It runs a linux with 4.1 kernel version.
Everything’s working fine so far, however when I leave on a movie in fullscreen and just turn off the TV over night I’ll have a large mouse cursor right in the center of the screen.
When I move the mouse I get the regular (a bit smaller) cursor moving as usual.
The bigger cursor in the middle will stay there, however. It also is at the same place in the menu, after stopping the movie completely.
I have to restart to get rid of it.

Any ideas on this?