Sorry - I just tried using my phone (I normally use a tablet with my drone and do the flight log uploads etc from that) and my phone sucessfully uploaded all my flights.
Weird.
Wonder why they weren't uploading off my tablet.
Actually I have noticed that when I 'sync my flight records' on my tablet, it says that it fails once it gets to about 98%.
My phone doesn't fail and seems to finish ok.
Perhaps I need to delete all the cached logs on my tablet?