after updating the 2509 data for MSFS 2024 , the aircraft with the built-in G1000 avionics in the game (Cessna172 DA62) cannot display the airport codes ZUUU and ZPPP when entering the route (these are the two I have found so far). However, the input function works normally after removing the Navigraph data.
It is hard to say what the reason is due to the lack of information from your side, but as you see, when all is set correctly, all packages are fully SU3 compatible—both airports are selectable without any issue.