GXP2000 Transfers not working for Queue/Originated Calls

Currently using FreePBX and Asterisk 1.8 and experiencing a weird issue.
When an call comes from a queue to a GXP2000 phone (latest firmware) - we are unable to transfer using the GXP Transfer button to a second connected line. This also occurs when we Originate a call via AMI. That call cannot be transferred to a second line.

If we manually dial out on two lines, those calls can be transferred to one another. But not a queue call and not an orignated call.

I can’t seem to find any known issues. Any help would be appriciated.