Moving Headquarters

When I want to move my headquarters I keep getting the info message on how-to-do-that. But i'm doing everything right.. clikcing on an other HQ and pressing "Move to headquarters".. Somebody Help me!
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=6&t=21295