Hello! Thanks for the feedback, and sorry for the late response!
I assume you are using the EFB app for the SimBrief import? If that is the case, you were likely affected by a bug that has since been fixed in beta 4! See our release notes:
v1.0.0 Beta 4 (16th December 2024)
- Fix: Improve success rate when importing US airports
Please try the latest version and let me know how it works out!
Kind Regards,
Malte