Same problem for me with double clicks on my set-top box VU+ Zero when changing channels with arrow UP and DOWN. The double click problem is still there even if I learn the codes from the original remote. Very annoying. Also it is impossible the press the same button twice. The second time nothing happens. I need to first press another button then the first button works again. But again only for one press.

I have the exact same problem with VU+ Zero. Have tried several VU+ configs and also tried to lern from original remote but the problem is still there.