This site is being deprecated.
Please see the official X‑Plane Support page for help.
It's hard to say whether it's an issue with your steps, the airport, or ATC, etc, from this description. It's best to try to find out if there is a consistent place it happens, or if it always happens after you perform certain actions. If you can narrow down the issue to a pretty specific set of steps that always cause it, file a bug here.
This site is no longer being actively maintained.