Can connect from phone, but not from PC

There is no problem with phone <-> rpi connection. However, only one time I managed to connect to Raspberry Pi 4 with my PC (elementary OS), but without sound. Then, I did reconnect and wasn't able to connect rpi anymore. I'm able to connect to Mi Bluetooth Speaker without any problem.

alsa-info

I can say that rpi receives the data. sudo hcidump -x -i hci0:

> ACL data: handle 11 flags 0x02 dlen 612
    L2CAP(d): cid 0x0041 len 608 [psm 0]
      80 01 AF 5E 00 3C 69 00 00 00 00 01 05 9C BD 35 96 FC B6 54 
      31 00 71 00 00 00 4F D5 68 38 A8 23 DA 71 3F 56 88 09 3D 93 
      45 E9 AA B6 8A EE 88 8B DC 6A 58 92 84 05 1E 54 2B 05 A2 9D 
      1B 56 65 13 35 5C F6 11 90 9A A2 0B 28 BE 81 D9 9D 4F 82 4A 
      D4 89 CF 28 75 6A 80 B0 91 BA A3 D0 D5 ED B2 4E 4E 5C F4 B4 
      91 49 65 62 F8 65 F5 85 14 8F B7 43 B2 23 72 E1 87 34 5D A8 
      24 FB D3 81 50 CE 2F 7E 65 A5 88 88 9C BD 35 96 FC B6 54 31 
      00 71 00 00 00 77 66 F0 C2 91 38 23 DE 2F 76 B9 CA 7E A0 0A 
      3E E9 CA 5C CB 12 AF B0 AA 51 09 69 87 81 43 B5 69 55 D4 6C 
      46 1A 7B C7 0E DD A3 2D 32 1A 37 58 8E C8 26 51 53 B6 CC 57 
      ED C2 96 94 BE 76 AF 5D 32 B4 E2 74 1A 12 42 B6 6D CF 9D 2E 
      11 CC E5 83 5C D7 20 6A 26 ED 06 63 23 59 35 4A E4 C6 F8 99 
      42 4A 53 2B B6 5F 5B 57 53 7B 42 9C BD 35 4A FC A6 65 31 00 
      81 00 00 00 D2 35 E4 32 45 5F 66 3D 8C DA 62 DA 88 AE F4 87 
      50 19 51 17 54 6E 46 5D 4E 7F 49 F7 CE 34 50 53 0B C5 5D 8C 
      2E 65 95 69 FD 36 86 FC 64 0E 4D EB AB B7 D0 9B 3B 5F 5D 20 
      50 F4 BA AA A3 CB 07 0A 24 39 91 36 35 4A 36 1E D2 59 E0 A7 
      BB B1 10 41 71 AD 0C 35 4A FC 83 BB 87 AE 94 70 58 09 B4 32 
      D5 13 F1 00 82 8A 89 F1 5F 75 9C BD 35 CD FC A6 55 31 00 62 
      00 00 00 0D 54 C3 6A A5 11 90 A7 CA 73 AF 97 D3 05 DC B3 DA 
      83 BE 68 2E D7 11 64 1D CC A1 39 6C 67 E1 0E 4B 0A AA F1 AA 
      B7 54 A0 77 CA 51 E9 12 76 E4 36 6E 2F 47 4D 04 23 0D 6D 7D 
      CC 9D D1 49 43 EC D3 77 B1 8D 0E 48 E9 DA BE AC 7F 1A E4 CB 
      1A 36 B5 BC 7E EB DD 70 A9 BB 98 5E A6 F5 61 AE 65 51 B2 E6 
      CA 56 96 6D DC ED 31 4A A8 9C BD 35 CD FC B7 64 42 00 82 00 
      00 00 A1 10 DC CB 55 A1 BD 4D 96 9A F1 6D 22 2C 9E 05 97 16 
      6C AD 71 AA 2C E9 33 B2 9C 07 1A 39 BD DF FA 60 39 71 16 6F 
      17 2F 01 D0 BD 6F 69 BE 37 D5 FC F0 75 5A CF BE 2C 26 75 4F 
      00 76 08 85 8B A5 18 1C 31 1B 8B D2 F5 BC DD 8A 1B CD 47 4D 
      A0 FC 46 A6 D5 45 EB A7 DD 77 53 B5 AD 47 3A C3 B1 96 0F 79 
      89 F4 A1 5C B0 7B 46 CF

Do You have any idea, what might cause the problem?

nicokaiser / rpi-audio-receiver

Can connect from phone, but not from PC #90