Not sure when this started occurring but recently - not sure if it was the last update. I’ve not had reason to change anything so I cant think locally what might be causing it.
On one of my Vero 4ks the screen blanks out frequently - so frequently it is impossible to use menus effectively - unless youre very patient 
Oddly if a TV program is running then the sound continues. If the TV program is in foreground it does not seem to happen - only when the Kodi menus are up and then mainly hte guide and mainly when changing an item. As I say I’ve not noticed it on the other Vero but we dont often use that.
I thought it might have been a DVD player I have attached but no its not that - I’ve also changed the power supply - not that either . No settings have been changed recently
Logs uploaded here /paste.osmc.tv/exutehudac
Hoping anyone can help
JM
Might be a far fetch, but I resolved similar issues with a new (better) hdmi cable.
20:27:35.556 T:4081934928 NOTICE: Display resolution ADJUST : 1920x1080 @ 50.00 - Full Screen (24) (weight: 0.000)
20:27:35.556 T:4081934928 NOTICE: VideoPlayer: OnLostDisplay received
20:27:35.841 T:4081934928 NOTICE: VideoPlayer: OnResetDisplay received
HDMI cable might be loose, or need replacing.