Connect 40 UHD split screen [GELÖST]

[MikeB]

TV screen has a vertical line running down the middle
The right hand side is lighter than the left one
Hard reset has eliminated the issue

This has happened before; I have taken a photo

[MikeB]

Split screen
Log 32919
Connect 40 UHD SL420
17.05 BST
10/05/17

[MikeB]

Defect appears to have been linked to incomplete software update

[MikeB]

Defect appears to have been linked to incomplete software update

Sadly not as we hoped; same defect presented itself on my ART 48 SL410 when switching the TV on the other day
Rectified by switching off using the remote, waiting and switching back on
Very spasmodic , happens rarely and not a major issue, but its still out there

TV has latest Firmware update BTW