Playing movie create random black screen for about a second, I also have flashes on the UI

Flashes on UI look like lightning, the kind you get sometime when a phone ring close to unprotected screen. Happen every minute or so maybe.

Now the black screen on playing is kinda "smooth" but super annoying, It took me a while to realize its not a fade to black from the movie or show.

This happen on both Kodi XDMC and Vanilla Blue inetrface, with both players I have (zidoo and another).

I was on firmwar v2.1.30 when It started happening but It still happen on 2.1.42

 

I get a 1 second black screen just after the set boots up. Just goes black once.
Also sometimes when starting a recording (movie or otherwise).