Bluetooth pairs and connects, but no sound

Xperia 10iii
Sony XAV-AX1000

Well, it pairs and connects and the sound disappears from the device, but no sound emanates from the Sony.

Devices that pair and work correctly.

iPhoneSE3 iOS 15.6

I was particularly pleased when the Bluetooth on/off bug on the XperiaX was fixed. I guess I’ll be on my X for a while yet

I know BT is flakey at best, but there you have it. Anyone with similar problems on the latest version of SFOS?