Ohh, sorry i asumed you would know what an intercom is, my bad, its basically a headset for motorcycle helmets, it works no diferent than a regular headset and it does get detected in PA build 957, i just used it for my example, but as i mentioned it happens with any device, for example 2 diferent sets of earbuds.
To be clear all my devices get detected by PA when i connect them, the issue is after i connect a BT device, all subsequent devices get listed by PA as the same first device so it gets stuck using the preset for that one device.