Amazing - it's taken them "some days" to get the issue on the way to being resolved
"Over the past few days, some publishers let us know that they were
unable to view any data for their custom channels. Our engineers have
now resolved the issue, and they're currently working on including the
missing data from the past few days. Your custom channels should now be
tracking data as normal. Please be assured that your aggregate reports,
which are used to calculate payments, have not been affected.Thanks for
your patience, and for bringing this issue to our attention!Posted by
Arlene Lee - AdSense Publisher Support "
Mine are not yet working by the way. :td: