Unable to Use balenaSound on Raspberry Pi

Hello there, let me post here also apart from the original thread I used balenaSound blueooth audio on Raspberry Pi 3: Sound skipping, dropping because maybe it can be useful.
After various builds and tips and tricks followed (not yet the external bluetooth thing, which I expect to test today) I have been experiencing:

  • Crippling sounds
  • Very very low volume, despite the volume is at 75% by default
  • Packet loss, seen through the console

Using standard 3,5 jacks here, no conversors needed (also tried more than one of these cables)
The issue reproduces no matter the audio source, always same behavior.
Last build I made it ethernet only and even configured the variable to avoid the wifi module usage
The distance where I send content is very small, half a meter or less every time.

balenasound_fragrant-morning-19.02.20_17_48_48_( 0100).log (107.7 KB)
71930c46f85eabf18f2d49fb651d0858_2020.02.19_13.39.51 0000.log (596.8 KB)

19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40312 != 40307
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40315 != 40313
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40329 != 40323
19.02.20 16:03:05 (+0100) 2020-02-19 15-03-05 [Info] Sleep -3, age: -4, bufferDuration: 30
19.02.20 16:03:05 (+0100) 2020-02-19 15-03-05 [Info] Sleep -2, age: -3, bufferDuration: 30
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40336 != 40331
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40339 != 40338
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40343 != 40342
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40347 != 40345
19.02.20 16:03:05 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40350 != 40348
19.02.20 16:03:06 (+0100) /usr/bin/bluealsa: Missing RTP packet: 40360 != 40357
19.02.20 16:03:06 (+0100) 2020-02-19 15-03-06 [Info] Chunk: -35 -35 -35 -35 1 111
19.02.20 16:03:06 (+0100) 2020-02-19 15-03-06 [Info] Sleep -1, age: -2, bufferDuration: 30
19.02.20 16:03:06 (+0100) 2020-02-19 15-03-06 [Info] Sleep 0, age: -1, bufferDuration: 30
19.02.20 16:03:06 (+0100) 2020-02-19 15-03-06 [Info] Sleep 0, age: -2, bufferDuration: 30
19.02.20 16:03:06 (+0100) 2020-02-19 15-03-06 [Info] Sleep 0, age: -1, bufferDuration: 30

Thanks in advance.