I can load any previous flight except the most current. Occurs both on an iPhone 6 running iOS 9.3.4 and an iPad Air 2 running iOS 10 beta 4.
The flight log loaded fine before 2.8.6.
Tried re syncing the flight log from the cloud and deleted/reinstalled the app on the iPhone only.
Made two more flights tonight, and the two new ones play back fine, so it appears that the one recorded previously is corrupt. Any way to restore it in the app so it doesn't crash the app?

Hello Hotolds442, it is a known issue. Our developers are working on it.

Resolved with the 2.8.7 update.