Emirates Skywards - Latest Special Fares Ex UK

I have been looking at the latest Special Fares ex UK & despite trying to book several destinations, using different departure airports & a variety of dates - these fares don't appear to be available i.e. LGW > CGK £537 in Y - lowest fare I can see is £580.

Anyone else noticed this?

They've been known to advertise fares on their website without properly loading them before... but £43 doesn't sound that 'special'...