After following the instructions here:
https://www.element14.com/community/doc ... berry-pi-3
I'm using the Bluetooth setup assistant from the menu bar, the Pi can see the keyboards I'm trying to pair with (I've tried 3 so far), but I get 'Pairing in Progress' followed by 'Failed to Add Device', using both random and pre-assigned passkeys. All 3 keyboards can be paired with other devices (Macs, iPads, iPhones), so the fault isn't with the devices...
Is there anything else I can try?