Not really sure how to explain, this but this has been going on for a while. See the screenshot. 

hi, that's an issue with your language file. try deleting it.

Thank you. I renamed the old language file, reloaded the plugin and it generated a new language file. The strange thing is that both files are exactly the same but it's working now. 

language files have strange behavior. there's not much I can do about that though since the plugin doesn't handle that behavior. glad you sorted it.