Missing guide data?

All day today I’ve seen lots of gaps in the guide data on the ATV and iOS. Channels is version 2.1.8 on the ATV and 1.3.3 on iOS. Guide data source is set to SD. Location is UK, postcode SK4, Freeview.

I’m assuming it’s a SD problem, as I see the same gaps in the HDHomeRun view app on my Mac.

Yes there’s some sort of issues going on at Gracenote which is affecting SD and has caused problems for us too.