Do you have the same issue if you follow the OP’s steps to reproduce it?
Yes, I am building a DC3 cockpit and a second cockpit is too much for me. I use as examples two dutch existing planes (PH-PBA and PH-DDZ) My registration will be PH-RIK
Provide extra information to complete the original description of the issue:
As seller Microsoft is responsible for promised and (poor)documented items Asobo is a subcontractor and should do what Microsoft orders. I looks like Microsoft is not really interested in cockpitbuilders but I hope sincerely that I am wrong. In the meanwhile I bakupgraded to FSXSE