convert-im6.q16: no images defined

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is almost the same as displaying images still fails since version > 1.15.1 #974

strace -o temp/convert_trace.log convert /home/gigi/NextCloud/Documents/Accomodations/IMG_1626.HEIC /home/gigi/temp/IMG_1626.jpg
convert-im6.q16: no images defined `/home/gigi/temp/IMG_1626.jpg' @ error/convert.c/ConvertImageCommand/3229.

convert_trace.log

heif-convert works but convert doesn't in Ubuntu 23.10

gm convert -debug coder,exception /home/gigi/NextCloud/Documents/Accomodations/IMG_1626.HEIC info:-
19:57:31 0:0.001214  0.000u 1583625 constitute.c/ReadImage/1676/Coder:
  Invoking "HEIC" decoder (HEIF Image Format) subimage=0 subrange=0
19:57:31 0:0.003685  0.000u 1583625 heif.c/ReadHEIFImage/571/Coder:
  Geometry: 3024x4032
19:57:31 0:0.003699  0.000u 1583625 heif.c/ReadHEIFImage/573/Coder:
  Matte: False
19:57:31 0:0.003710  0.000u 1583625 heif.c/ReadMetadata/191/Coder:
  Profile "Exif" with content type "" and size 2778 bytes
19:57:31 0:0.003724  0.000u 1583625 heif.c/ReadColorProfile/328/Coder:
  Found color profile of type "prof")
19:57:31 0:0.003730  0.000u 1583625 heif.c/ReadColorProfile/342/Coder:
  Reading ICC profile with size 536 bytes
19:57:31 0:0.004190  0.000u 1583625 heif.c/ReadHEIFImage/650/Coder:
  heif_decode_image() reports error "Unsupported feature: Unsupported codec"
19:57:31 0:0.004440  0.000u 1583625 heif.c/ReadHEIFImage/653/CorruptImage:
  An error has occurred reading from file (/home/gigi/NextCloud/Documents/Accomodations/IMG_1626.HEIC)
19:57:31 0:0.004461  0.000u 1583625 constitute.c/ReadImage/1702/Coder:
  Returned from "HEIC" decoder, returned image is NULL!
gm convert: An error has occurred reading from file (/home/gigi/NextCloud/Documents/Accomodations/IMG_1626.HEIC).

gm convert -list formats |fgrep -i heif
     AVIF P  r--  HEIF Image Format (heif v16.2.0)
     HEIC P  r--  HEIF Image Format (heif v16.2.0)
     HEIF P  r--  HEIF Image Format (heif v16.2.0)

ldd /usr/bin/heif-convert
        linux-vdso.so.1 (0x00007fffc93e3000)
        libheif.so.1 => /lib/x86_64-linux-gnu/libheif.so.1 (0x00007cc02e957000)
        libjpeg.so.8 => /lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007cc02e8d4000)
        libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007cc02e89c000)
        libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007cc02e600000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007cc02e878000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007cc02e200000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007cc02e5e1000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007cc02e4f6000)
        /lib64/ld-linux-x86-64.so.2 (0x00007cc02ea21000)

$ldd $(which convert)
        linux-vdso.so.1 (0x00007ffc39e8b000)
        libMagickCore-6.Q16.so.6 => /lib/x86_64-linux-gnu/libMagickCore-6.Q16.so.6 (0x000077efb6000000)
        libMagickWand-6.Q16.so.6 => /lib/x86_64-linux-gnu/libMagickWand-6.Q16.so.6 (0x000077efb5ed7000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x000077efb5c00000)
        liblcms2.so.2 => /lib/x86_64-linux-gnu/liblcms2.so.2 (0x000077efb638c000)
        liblqr-1.so.0 => /lib/x86_64-linux-gnu/liblqr-1.so.0 (0x000077efb5800000)
        libfftw3.so.3 => /lib/x86_64-linux-gnu/libfftw3.so.3 (0x000077efb5400000)
        libxml2.so.2 => /lib/x86_64-linux-gnu/libxml2.so.2 (0x000077efb5a11000)
        libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x000077efb633c000)
        libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x000077efb5734000)
        libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 (0x000077efb6327000)
        libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x000077efb52c2000)
        libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x000077efb6312000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x000077efb62f3000)
        libltdl.so.7 => /lib/x86_64-linux-gnu/libltdl.so.7 (0x000077efb62e8000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x000077efb5649000)
        libgomp.so.1 => /lib/x86_64-linux-gnu/libgomp.so.1 (0x000077efb5e84000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x000077efb5e60000)
        /lib64/ld-linux-x86-64.so.2 (0x000077efb6419000)
        libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x000077efb517b000)
        libicuuc.so.72 => /lib/x86_64-linux-gnu/libicuuc.so.72 (0x000077efb4e00000)
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x000077efb5e2e000)
        libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x000077efb561e000)
        libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x000077efb5143000)
        libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x000077efb62d7000)
        libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x000077efb5119000)
        libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x000077efb507e000)
        libicudata.so.72 => /lib/x86_64-linux-gnu/libicudata.so.72 (0x000077efb3000000)
        libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x000077efb2c00000)
        libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x000077efb505b000)
        libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x000077efb62cf000)
        libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x000077efb5e26000)
        libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x000077efb5e11000)
        libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x000077efb504c000)