BRI stand issue

I have a spare L stand at BRI, in the pic, however my 787 I just purchased is greyed out so I can’t have both of them on the ground together (other aircraft is my 777)



Have you already landed another large A/C? Has this will make your new one come up gray

It might just be that another L plane is in the queue, keep playing for around an hour and then if it’s still gray come back here!