Same problem here on Ubuntu 20.04, using TP-Link ub400 usb bluetooth adapter (Cambridge Silicon Radio) blueman/bluez doesn't detect my audio device, but hcitool does:
$ hcitool scan
Scanning ... B8:D5:0B:08:42:3E Avantree Clipper Pro
Please add the fix to Ubuntu 20.04 (Long-Term Support ?)
Same problem here on Ubuntu 20.04, using TP-Link ub400 usb bluetooth adapter (Cambridge Silicon Radio) blueman/bluez doesn't detect my audio device, but hcitool does:
$ hcitool scan
B8:D5:0B:08:42:3E Avantree Clipper Pro
Scanning ...
Please add the fix to Ubuntu 20.04 (Long-Term Support ?)