Simbrief flightplan not loaded after MSFS2024 SU1 update

This may be fully expected due to changes made in 2024 compared to 2020 with regard to the package loading order. See this related post:

To confirm this, please follow these instructions when loaded into one of these affected 3rd party airports:


Do you still have Navigraph Beta AIRAC installed or are you removing that as well?
What are you using to load the route without the EFB addons?

Kind Regards,
Malte