Beta Droid Planner 3 - Fly time

I was testing Droid Planner 3 and I had found a bug.

Copter on.
Go to connect the droid planner via 433mhz module.
Connection OK.
Do something before arming.
Air time is still 00:00
Arm the copter and take off.
Air time suddenly increase at 02:45
Air time continue to goes on until I land.

I tried this twice.
The second time right after arming the air time became 10:10

I think there is something wrong.
Air time should display the time between arm and disarm. Or between takeoff and landing.
I'm I right?

I think right now is displaying the time between connection and disconnection.
But it display it only if I arm the copter. Otherwise is 00:00