Why can't I set up flights from some airports in Vietnam such as Lien Khuong (VVDL), Vinh (VVVH), Dong Hoi (VVDH)... I have moved the plane position there, can manually take off there but I can't make it part of the flight. I tried using FMC but it doesn't work, even the flights that appear in the flight schedule can't start.

Unable to set up flight
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- Official Post
Thanks, it looks like the navigation airport doesn't exist there, we will check if we can fix this.
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Thanks, it looks like the navigation airport doesn't exist there, we will check if we can fix this.
There are also many similar issues at Chinese airports
For example:ZJYX
ZJHK
......