I have a few fights on using my iPhone - those flights sync fine across my iPhone and iPad. I have started using a dedicated Android device and have a few more flights on it. The initial flights from my iPhone show up fine in the flight data. However, when I try to sync my iPhone or iPad, the only flights that show up are the ones from the iPhone. None of the flghts made with the Android device come across.

Is this expected behavior? Hopefully this explanation makes sense.

Yes, please make sure that you had synced the flight records on your Android device with the same DJI account.

No, it is a BUG and there are several threads in this forum about it. Android flights, not all are recognized by IOS DJI GO 4 app thou they are synced and .txt files are in place
http://forum.dji.com/thread-103432-1-1.html
http://forum.dji.com/thread-102262-1-1.html

Thanks - not good that it is a bug, but good that I am not doing something wrong