I know this thread is very old, but I was having an issue where the button name would not update to the new label even though it was correct in the database and in the admin interface. Turned out the extension was a member of a queue somewhere that was preventing the name from updating. When I removed the extension from all queues, it updated and then I could re-add the extension to the queues and it would display correctly. Hope this helps someone.
J
jonathanhagler
@jonathanhagler