ATBI command not working

I’ve developed a mobile app that communicates with an XBee3 over Bluetooth. I’m trying to set the “BI” parameter so the user can change the broadcast name of their choice.

However, whenever I try to do this, it doesn’t go through—nothing happens (when I read the BI param directly via serial it hasn’t changed), and when I restart the module it has mysteriously changed to a single space (the default). Does anyone recognize this behavior? All the other commands I’m sending work as expected. And yes, I’m sending ATWR as well. I’ve also tried sending in AP1 as well as AP0 mode to no avail.

Thanks for any insights!

Nevermind, it was a problem with the library I was using to write the command. All working as expected now.