[BUG] Scanner Crashes when not outputting signal

[CSutter5]

Describe your environment

• RTLSDR-Airband version you are using (stable release number or branch/commit): v4.0.2
• make options used to build the program:
  • NFM=ON
  • RTLSDR=ON
  • MIRISDR=OFF
  • SOAPYSDR=OFF
  • PULSEAUDIO=ON
  • CMAKE_BUILD_TYPE=Release
• Hardware platform (eg. x86_64, Raspberry Pi v4): x86_64
• Operating system name and version: Arch Linux

What happened? It runs for about 5-10 seconds, then crashes with rtlsdr_demod_write_reg failed with -9 i2c wr failed=-9 reg=17 len=1 printed

What you expected to happen? It to keep running and not crash

Steps to Reproduce Run with my config file

Additional context It works just fine if squelch_threshold = -30;

My Config File

devices:({
    type = "rtlsdr";
    index = 0;
    gain = 25;
    mode = "scan";

    channels: ({
        freqs = ( 444.5, 444.75, 444.375, 451.275 );
        modulation = "nfm";

        outputs: ({
            type = "icecast";
            server = "127.0.0.1";
            port = 8000;
            mountpoint = "stream.mp3";
            name = "stream";
            username = "source";
            send_scan_freq_tags = false;
        });
    });
});

[szpajder]

This indicates a problem with communication with your device. rtl_airband can't do anything about it, so it shuts down. Please fix your hardware first - try another dongle, check USB cables, make sure you don't have power problems (https://github.com/szpajder/RTLSDR-Airband/issues/94#issuecomment-403890481).