So please could someone from Espressif or another forum regular give me some tips to improve my request for help? As no-one has responded so far that's probably because I haven't framed the question properly or provided enough detail for someone to suggest where to go troubleshooting next. I attach ...

I'm using ESP32 4MB flash at 240 MHz and have code based on the A2DP source example in ESP-IDF. Because I want to move to more flexibility between the BT audio callback calls, I have filled the sample buffer outside the BT callback in a Task and am passing the pointer to the buffer in a Queue. I'm u...