I am currently decoding my HDCD's, which I already ripped to Flac. On one of the CD's each track gives two errors when decoding which I don't really understand, see the verbose logging below (for one track). What is causing this errors? The albums are ripped securely and verified against CTDB + AccurateRip.

Code:
.../hdcd/King Crimson - 1974 - Starless And Bible Black (30th Anniversary Edition)$ ffmpeg -i 01.\ King\ Crimson\ -\ The\ Great\ Deceiver.flac -af hdcd 01.\ King\ Crimson\ -\ The\ Great\ Deceiver.hdcd.flac -v verbose 
ffmpeg version 4.4-6ubuntu5 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.2.0-7ubuntu1)
  configuration: --prefix=/usr --extra-version=6ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, flac, from '01. King Crimson - The Great Deceiver.flac':
  Metadata:
    album           : Starless And Bible Black (30th Anniversary Edition)
    artist          : King Crimson
    title           : The Great Deceiver
    DATE            : 1974
    track           : 01
  Duration: 00:04:02.87, start: 0.000000, bitrate: 961 kb/s
  Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
Stream mapping:
  Stream #0:0 -> #0:0 (flac (native) -> flac (native))
Press [q] to stop, [?] for help
[Parsed_hdcd_0 @ 0x55ad3d917240] Disabling automatic format conversion.
[graph_0_in_0_0 @ 0x55ad3d9177c0] tb:1/44100 samplefmt:s16 samplerate:44100 chlayout:0x3
[Parsed_hdcd_0 @ 0x55ad3d917240] Auto-convert: disabled
[Parsed_hdcd_0 @ 0x55ad3d917240] Looking for 16-bit HDCD in sample format s16
[Parsed_hdcd_0 @ 0x55ad3d917240] CDT period: 2000ms (88200 samples @44100Hz)
[Parsed_hdcd_0 @ 0x55ad3d917240] Process mode: process stereo channels together
[Parsed_hdcd_0 @ 0x55ad3d917240] Force PE: off
[Parsed_hdcd_0 @ 0x55ad3d917240] Analyze mode: [0] disabled
[flac @ 0x55ad3d8d3f80] encoding as 24 bits-per-sample
Output #0, flac, to '01. King Crimson - The Great Deceiver.hdcd.flac':
  Metadata:
    album           : Starless And Bible Black (30th Anniversary Edition)
    artist          : King Crimson
    title           : The Great Deceiver
    DATE            : 1974
    TRACKNUMBER     : 01
    encoder         : Lavf58.76.100
  Stream #0:0: Audio: flac, 44100 Hz, stereo, s32 (24 bit), 128 kb/s
    Metadata:
      encoder         : Lavc58.134.100 flac
[Parsed_hdcd_0 @ 0x55ad3d917240] hdcd error: Control B check failed: 0x0093 (0x00 vs 0x6c) near 5783552
[Parsed_hdcd_0 @ 0x55ad3d917240] hdcd error: Control B check failed: 0x2436 (0x24 vs 0xc9) near 5783552
No more output streams to write to, finishing.1kbits/s speed= 153x    
size=   29424kB time=00:04:02.86 bitrate= 992.5kbits/s speed= 153x    
video:0kB audio:29416kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.027989%
Input file #0 (01. King Crimson - The Great Deceiver.flac):
  Input stream #0:0 (audio): 2615 packets read (29166494 bytes); 2615 frames decoded (10710420 samples); 
  Total: 2615 packets (29166494 bytes) demuxed
Output file #0 (01. King Crimson - The Great Deceiver.hdcd.flac):
  Output stream #0:0 (audio): 2325 frames encoded (10710420 samples); 2326 packets muxed (30122026 bytes); 
  Total: 2326 packets (30122026 bytes) muxed
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: counter A: 0, B: 2451, C: 2452
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: pe: 0, tf: 0, almost_A: 0, checkfail_B: 1, unmatched_C: 0, cdt_expired: 0
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg 0.0: 2411
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -0.5: 9
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -1.0: 7
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -1.5: 6
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -2.0: 6
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -2.5: 2
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -3.0: 0
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -3.5: 0
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 0: tg -4.0: 10
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: counter A: 0, B: 2451, C: 2452
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: pe: 0, tf: 0, almost_A: 0, checkfail_B: 1, unmatched_C: 0, cdt_expired: 0
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg 0.0: 2411
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -0.5: 9
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -1.0: 7
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -1.5: 6
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -2.0: 6
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -2.5: 2
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -3.0: 0
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -3.5: 0
[Parsed_hdcd_0 @ 0x55ad3d917240] Channel 1: tg -4.0: 10
[Parsed_hdcd_0 @ 0x55ad3d917240] Packets: type: B, total: 4902
[Parsed_hdcd_0 @ 0x55ad3d917240] HDCD detected: yes, peak_extend: never enabled, max_gain_adj: -4.0 dB, transient_filter: not detected, detectable errors: 2 (try -v verbose)
[AVIOContext @ 0x55ad3d8d4cc0] Statistics: 2 seeks, 116 writeouts
[AVIOContext @ 0x55ad3d8d5380] Statistics: 29175367 bytes read, 0 seeks