Do you have the same issue if you follow the OP’s steps to reproduce it?
• no
Provide extra information to complete the original description of the issue:
• tested with N734DB an N is correctly pronounced November
Check out that post: ATC Callsign not using ICAO Alphabet - #8 by FSEINDHOVEN, maybe can help
My Win11 language is English as well as the sim
If relevant, provide additional screenshots/video:
•