[Solved] Aircraft not flying

[kelvinlo01]

Hi all, some sectors in my airline, including those in the attachment, are not flying...
I assigned the aircrafts to the schedules a long time ago (in game)... but it has been showing a $0 profit with no income and expense...
I have tried to delete and create the same schedule again but the result remains the same...
I have been searching through the forum and couldn't find the reason...it is not related to the aircraft maintenance schedule, the runway length nor any curfew...
Could anyone help take a look into the matter? Thanks in advance!

[gazzz0x2z]

Well, 2 big airports allowing all aircraft, 2 long runways allowing even such big aircraft, one aircraft has been assigned. So the last one of the usual suspects is  : did you buy the slots? If you are not sure, enter each route in "edit", there should be a slot cost in red, click on "confirm", and it should be OK.

If not, it's an interesting case.

[kelvinlo01]

yeah the slots have been bought a long time ago...
every time I click "edit", it shows that I have paid for the slots already (i.e. the slot cost is zero in green)...
meanwhile I have another B744 and A333 operating out of the airport without any problems...

[kelvinlo01]

I have no idea why but the problem seems to have resolved itself...