There is a typo on filename of (MSG0409.bin vs MSG00409.bin) which results with a warning while compiling the messages during the build process.
Output
warning MSB8065: Custom build for item "messages.mc" succeeded, but specified output "c:\users\purplemanul\source\repos\wsl-images\distrolauncher\msg0409.bin" has not been created. This may cause incremental build to work incorrectly.
Accordingly the Windows Language Code Identifier (LCID) Reference, Language ID for "en-US" Language tag is "0x0409".
There is a typo on filename of (MSG0409.bin vs MSG00409.bin) which results with a warning while compiling the messages during the build process.
Output
Accordingly the Windows Language Code Identifier (LCID) Reference, Language ID for "en-US" Language tag is "0x0409".