Hi, I updated, had to, to the latest  DJI GO 4 and not sure if this is the reason but there was no flight data under directory DJI/DJI Pilot/FlightRecord of todays flight.
Previous flights are still there.
How does the flight data on the P4 transfers to my tablet?
Still coming to grips with the P4, had it since December, flies very well. Have done nearly 8hrs and 50km's with no mishaps.
Great bit of kit.  Same cannot be said op DJI Support, I just don't hope I don't have to use them for a serious problem
Been communicating via k/board with absolutely no succes. They know that I was talking about P4, howvever, they wanted me to watch an old YouTube video of a P3 and an old version DJI GO.
Told the guy that I would try the DJI Forum instead. Some very smart pointy heads on this form.
Cheers from Perth WA.

Update - De-Installed DJI Go4, also removed all DJI files and directories from tablet and re-installed DJI Go 4. All OK now. It appears that the problem might have been caused by the mandatory DJO Go4 update.