Just to save others some time... This script: <a href="https://github.com/sarkamist/Tongues-Script" rel="nofollow">https://github.com/sarkamist/Tongues-Script</a> often doesn't work on certain characters without any explanation. After a LOT of troubleshooting, I've narrowed down the issue to three primary causes: Character name contain spaces or special characters Character name in tongues language file > GM section contains spaces or special characters Player's Roll20 account name/alias is same as character name Someone should update the git README with this. It would have saved me a lot of time.