Just the NHS one as it isn’t part of the EU one. To be fair to them it only took a week or so for the same issue for the French one to be resolved.Is it the NHS App in particular or has it just been a change in the rules and the NHS app along with others has been caught in a dragnet?
That would be an interesting work-around - I have the French and Swiss apps so will give that a try later on when I have a separate screen to display a picture of the French code on to scan. The official workaround is to register a PDF of the NHS letter with the Swiss canton you want to visit and they’ll authorise it, but that method doesn’t work with a UK phone number! Nothing in life is easy is itI recall mention somewhere that you can scan the QR code from the NHS app with the french covid app and it will generate an EU vaccination certificate.