I have solved this issue by doing System Settings ->Reset -> Erase & Reset All.
This proves this was a software not hardware issue.
It is also a pain in the backside as I now have to re-setup my phone.
Double pain in the backside as I have already placed an order for a replacement Android phone! I will now have to decide which of my 2 phone I now use daily and which is the spare! HoHum... 1st world problems!
Thanks people for your thoughts.
Thanks UBports team for continuing the ubuntu touch journey... Great that there has been an OTA2 shame about the rough edges.
All the best