Loss of local BBC One East E and some HD channels

[PBlackmore]

Good evening all,
I hope I have put this in the right section, apologies if not.

I have a VU+ Duo2. One night all the channels I mainly watch were ok (BBC One East E, BBC One HD and BBC2 HD), then they have now stopped working. I tried rescanning the Autoboutique, but no luck there. The version was quite old, over a year old, so I thought the best thing to do would be to download the latest OpenVIX and apply that, which I have done, but I am still having the same issue. If I select one of the channels I get “Tune Failed”.
Can anyone through some light on the issue, any tests I can try?

Thank you in advance.