MSFS2024 SU2.
(The same problem sometimes occurs in MSFS2020 SU16)
When updating add-on scenery, adding airport names or ICAO (starting point) data does not apply to the new scenery.
Objects may also not be updated.
Deleting the dat file in the SceneryIndexes folder applies the changes, but deleting the dat file every time is difficult for average users.
Is there a way to avoid deleting SceneryIndexes?