3CX Added Recording BLF, Lost Others

[DNA Communications]

I have a deployment of Yealink T41 handsets. IIRC, we set up the BLFs to be one-button call forwarding. Last week I set their first button to be a record button by copying the Yealink T4x template and changing "linekey.1.type = 0" to be "linekey.1.type = 25".

The recording works great, but they've lost their ability to transfer.

I have verified the extensions still have their BLFs set in the 3CX management console.

Before I go on-site to see what they're talking about, what should I be looking for? Obviously, I'll roll one of the extensions back to the stock template to verify functionality.