How the mighty fall from grace.
To be fair to Octopus they have not yet had the chance to respond to my query, I think I have all the evidence there is a problem, their own backend data shows that there is no missing data on the day and, judging by the colours in the 30 minutes slots, we were exporting more that nothing across the whole of daylight. I think this means there is a glitch in the software that is copying the data across. One can speculate on why that might have happened and it is likely that the scrape over from one to the other can be rerun, lets wait and see.