i can not reproduce this - i tried with systemd and nonsystemd, both with and without
nonprism - all parabola x86_64 combinations work for me

is this about a different arch than x86_64?

can you show the output of these commands:

$ pacman -Qs gmtp
$ pacman -Qs flac
$ ldd /usr/bin/gmtp

It is an i686-system.

$ pacman -Qs gmtp
local/gmtp 1.3.11-3.0
    A simple MP3 player client for MTP based
    devices
$ pacman -Qs flac
local/flac 1.4.3-1.0
    Free Lossless Audio Codec
$ ldd /usr/bin/gmtp
    linux-gate.so.1 (0xb768e000)
    libgtk-3.so.0 => /usr/lib/libgtk-3.so.0 (0xb6c00000)
    libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0xb75e8000)
    libgio-2.0.so.0 => /usr/lib/libgio-2.0.so.0 (0xb69e2000)
    libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0xb7582000)
    libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb6878000)
    libmtp.so.9 => /usr/lib/libmtp.so.9 (0xb7525000)
    libFLAC.so.8 => not found
    libid3tag.so.0 => /usr/lib/libid3tag.so.0 (0xb750e000)
    libvorbisfile.so.3 => /usr/lib/libvorbisfile.so.3 (0xb7502000)
    libc.so.6 => /usr/lib/libc.so.6 (0xb6680000)
    libgdk-3.so.0 => /usr/lib/libgdk-3.so.0 (0xb657a000)
    libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0xb74fa000)
    libpangocairo-1.0.so.0 => /usr/lib/libpangocairo-1.0.so.0 (0xb74ea000)
    libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0xb650d000)
    libharfbuzz.so.0 => /usr/lib/libharfbuzz.so.0 (0xb6404000)
    libcairo.so.2 => /usr/lib/libcairo.so.2 (0xb62b0000)
    libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0xb74d0000)
    libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0xb625e000)
    libfribidi.so.0 => /usr/lib/libfribidi.so.0 (0xb623f000)
    libcairo-gobject.so.2 => /usr/lib/libcairo-gobject.so.2 (0xb74c7000)
    libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0xb6216000)
    libepoxy.so.0 => /usr/lib/libepoxy.so.0 (0xb6107000)
    libm.so.6 => /usr/lib/libm.so.6 (0xb5ffa000)
    libXi.so.6 => /usr/lib/libXi.so.6 (0xb5fe5000)
    libX11.so.6 => /usr/lib/libX11.so.6 (0xb5e94000)
    libatk-bridge-2.0.so.0 => /usr/lib/libatk-bridge-2.0.so.0 (0xb5e56000)
    libcloudproviders.so.0 => /usr/lib/libcloudproviders.so.0 (0xb5e3d000)
    libtracker-sparql-3.0.so.0 => /usr/lib/libtracker-sparql-3.0.so.0 (0xb5d60000)
    libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0xb5d58000)
    libpng16.so.16 => /usr/lib/libpng16.so.16 (0xb5d1c000)
    libjpeg.so.8 => /usr/lib/libjpeg.so.8 (0xb5c80000)
    libtiff.so.6 => /usr/lib/libtiff.so.6 (0xb5be3000)
    libz.so.1 => /usr/lib/libz.so.1 (0xb5bca000)
    libmount.so.1 => /usr/lib/libmount.so.1 (0xb5b7c000)
    libffi.so.8 => /usr/lib/libffi.so.8 (0xb5b72000)
    libpcre2-8.so.0 => /usr/lib/libpcre2-8.so.0 (0xb5ad2000)
    libusb-1.0.so.0 => /usr/lib/libusb-1.0.so.0 (0xb5ab2000)
    libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0xb59b7000)
    libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0xb5988000)
    libogg.so.0 => /usr/lib/libogg.so.0 (0xb597d000)
    /lib/ld-linux.so.2 => /usr/lib/ld-linux.so.2 (0xb7690000)
    libxkbcommon.so.0 => /usr/lib/libxkbcommon.so.0 (0xb5931000)
    libwayland-client.so.0 => /usr/lib/libwayland-client.so.0 (0xb5924000)
    libwayland-cursor.so.0 => /usr/lib/libwayland-cursor.so.0 (0xb591b000)
    libwayland-egl.so.1 => /usr/lib/libwayland-egl.so.1 (0xb5916000)
    libXext.so.6 => /usr/lib/libXext.so.6 (0xb5900000)
    libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0xb58f3000)
    libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0xb58ee000)
    libXcomposite.so.1 => /usr/lib/libXcomposite.so.1 (0xb58e9000)
    libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0xb58da000)
    libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0xb58d5000)
    libthai.so.0 => /usr/lib/libthai.so.0 (0xb58c8000)
    libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb58a3000)
    libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb57d5000)
    libgraphite2.so.3 => /usr/lib/libgraphite2.so.3 (0xb57b3000)
    libXrender.so.1 => /usr/lib/libXrender.so.1 (0xb57a5000)
    libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb5778000)
    libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0xb5768000)
    libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0xb5763000)
    libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0xb56ab000)
    libexpat.so.1 => /usr/lib/libexpat.so.1 (0xb5681000)
    libatspi.so.0 => /usr/lib/libatspi.so.0 (0xb5644000)
    libdbus-1.so.3 => /usr/lib/libdbus-1.so.3 (0xb55e5000)
    libjson-glib-1.0.so.0 => /usr/lib/libjson-glib-1.0.so.0 (0xb55b6000)
    libxml2.so.2 => /usr/lib/libxml2.so.2 (0xb543a000)
    libsqlite3.so.0 => /usr/lib/libsqlite3.so.0 (0xb52be000)
    libzstd.so.1 => /usr/lib/libzstd.so.1 (0xb51f2000)
    liblzma.so.5 => /usr/lib/liblzma.so.5 (0xb51b9000)
    libblkid.so.1 => /usr/lib/libblkid.so.1 (0xb517d000)
    libudev.so.1 => /usr/lib/libudev.so.1 (0xb5152000)
    libatomic.so.1 => /usr/lib/libatomic.so.1 (0xb514a000)
    libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0xb5122000)
    libdatrie.so.1 => /usr/lib/libdatrie.so.1 (0xb5119000)
    libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0xb5107000)
    libbrotlidec.so.1 => /usr/lib/libbrotlidec.so.1 (0xb50f8000)
    libXau.so.6 => /usr/lib/libXau.so.6 (0xb50f3000)
    libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb50ec000)
    libsystemd.so.0 => /usr/lib/libsystemd.so.0 (0xb5019000)
    libicuuc.so.73 => /usr/lib/libicuuc.so.73 (0xb4e14000)
    librt.so.1 => /usr/lib/librt.so.1 (0xb4e0f000)
    libpthread.so.0 => /usr/lib/libpthread.so.0 (0xb4e08000)
    libbrotlicommon.so.1 => /usr/lib/libbrotlicommon.so.1 (0xb4de5000)
    liblz4.so.1 => /usr/lib/liblz4.so.1 (0xb4dbe000)
    libcap.so.2 => /usr/lib/libcap.so.2 (0xb4db2000)
    libicudata.so.73 => /usr/lib/libicudata.so.73 (0xb2c00000)
    libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb4b7b000)

Hi, thank you this hint helped me a lot!

Best regards, probiermas