Exception in on_packet: unpack requires a buffer of 2 bytes

[chelalv]

I use nrf5340 audio dk example: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/bluetooth/nrf_auraconfig/README.html, to send BIG.
nac usecase 0, nac start
uart:~$ nac start
-- [00:02:18.122,100] broadcast_source: Enabling broadcast_source 0
-- [00:02:18.124,328] bt_mgmt_adv: Local addr: DC:1E:7F:E2:D5:16 (random)
-- [00:02:18.125,915] bt_mgmt_adv: Advertising successfully started
-- [00:02:18.136,657] broadcast_source: Broadcast source 0x2000584c started
-- [00:02:18.136,657] le_audio: LC3 codec config for source:
-- [00:02:18.136,657] le_audio: Frequency: 24000 Hz
-- [00:02:18.136,657] le_audio: Duration: 10000 us
-- [00:02:18.136,688] le_audio: Channel allocation: 0x0
-- [00:02:18.136,688] le_audio: Octets per frame: 60 (48000 bps)
-- [00:02:18.136,688] le_audio: Frames per SDU: 1

Use nrf52840dongle to receive BIG: python auracast.py scan serial:/dev/ttyACM0,100000
+Found 1 broadcasts
Broadcast: DC:1E:7F:E2:D5:16 ESTABLISHED
Name: Lecture
Appearance: AUDIO_SOURCE/BROADCASTING_DEVICE
RSSI: -55
SID: 0
Broadcast ID: 1193046
Features: STANDARD_QUALITY_CONFIGURATION
Metadata:
ERROR: bumble.transport.common:!!! Exception in on_packet: unpack requires a buffer of 2 bytes keeps appearing.

Exception in on_packet unpack requires a buffer of 2 bytes.txt

[chelalv]

There are also times when the output is normal

scan-output-normal.txt

[barbibulle]

I'll try to replicate and figure it out.