I have the same problem: Database is fine but no airport names (except for EDDS which I added as a community addon). I have also the steam version. Tried 223 and 224.
There is no C:\Users\USERNAME\AppData\Roaming\Microsoft Flight Simulator\Packages\Official\Steam\fs-base\ folder for me. The path exists up to "Steam", but this folder is empty. My en-US.locPak is located where I let the game-internal downloader/installer put the content: PATH_I_CHOSE\Microsoft Flight Simulator\Official\Steam\fs-base (so no "Packages" here).
But names do not show up even if I set this path when generating the database (same result than when setting no path at all).
There is no C:\Users\USERNAME\AppData\Roaming\Microsoft Flight Simulator\Packages\Official\Steam\fs-base\ folder for me. The path exists up to "Steam", but this folder is empty. My en-US.locPak is located where I let the game-internal downloader/installer put the content: PATH_I_CHOSE\Microsoft Flight Simulator\Official\Steam\fs-base (so no "Packages" here).
But names do not show up even if I set this path when generating the database (same result than when setting no path at all).