I'm having the same issue. But not only for UK. Benelux is also empty. 0 events.
The EPG has been acting up for a few days now (UK sometimes missing, and Benelux showing wrong events), but when I got home this evening, the whole EPG was empty and manually rescanning doesn't help.
Don't know if it's related to the mirror issues, but I'm seeing the same issues of wrong events on Belgian channels again. For example the Epg I'm seeing for the channel VIER for Sunday evening, is actually for Monday evening... (for example, the program De Mol at 8:35PM is on Mondays, but the EPG shows it on Sunday.)