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[tmodes <2049641@xxxxxxxxxxxxxxxxxx>]

Thanks for the test files.
But I can't reproduce the issue. When using your file, dcraw processes both files without problems:

Prozessiere: C:\Users\Thomas\Downloads\dcraw.exe  -w -v -4 -T "C:\daten\Hugin\test\raw\Canon\IMG_0001.CR2"
Loading Canon EOS 1300D image from C:\daten\Hugin\test\raw\Canon\IMG_0001.CR2 ...
Scaling with darkness 2048, saturation 13584, and
multipliers 1.832031 1.000000 1.646484 1.000000
AHD interpolation...
Converting to sRGB colorspace...
Writing data to C:\daten\Hugin\test\raw\Canon\IMG_0001.tiff ...
Aktualisiere EXIF-Daten der Datei C:\daten\Hugin\test\raw\Canon\IMG_0001.tiff
    1 image files updated

Vorgang dauerte 5 s
Prozessiere: C:\Users\Thomas\Downloads\dcraw.exe -r 1.832031 1.000000 1.646484 1.000000 -v -4 -T "C:\daten\Hugin\test\raw\Canon\IMG_0002.CR2"
Loading Canon EOS 1300D image from C:\daten\Hugin\test\raw\Canon\IMG_0002.CR2 ...
Scaling with darkness 2048, saturation 13584, and
multipliers 1.832031 1.000000 1.646484 1.000000
AHD interpolation...
Converting to sRGB colorspace...
Writing data to C:\daten\Hugin\test\raw\Canon\IMG_0002.tiff ...
Aktualisiere EXIF-Daten der Datei C:\daten\Hugin\test\raw\Canon\IMG_0002.tiff
    1 image files updated

Vorgang dauerte 4 s

The log of dcraw looks identical to your run. So I don't understand why
in your case the wb multiplier are not correctly read from the log. In
the log they appear correct, but they are not correctly parsed for the
second run of dcraw.

Maybe your dcraw version adds some non-printable to the log? Could you
try another dcraw version?

Just to be sure: you are using the latest Hugin version 2023.0?

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https://bugs.launchpad.net/bugs/2049641

Title:
  Multiple RAW files with dcraw don't work

Status in Hugin:
  Incomplete

Bug description:
  Hello,

  I've had good results with JPEG files using Hugin and wanted to try RAW files.
  Since it is sufficient and you don't need any major software, I wanted to use dcraw. But I have a problem when I select several files at once as recommended.
  The first file is processed and then the import stops. If I interpret it correctly, there is probably a problem with the white-balance reference where, I think, not all the data is passed to the next pass.

  
  Prozessiere: C:\Program Files\Hugin\bin\dcraw.exe  -w -v -4 -T "D:\test\test\IMG_0005.CR2"
  Loading Canon EOS 1300D image from D:\test\test\IMG_0005.CR2 ...
  Scaling with darkness 2048, saturation 13584, and
  multipliers 2.089844 1.000000 1.419922 1.000000
  AHD interpolation...
  Converting to sRGB colorspace...
  Writing data to D:\test\test\IMG_0005.tiff ...
  Aktualisiere EXIF-Daten der Datei D:\test\test\IMG_0005.tiff
      1 image files updated

  Vorgang dauerte 3 s
  Prozessiere: C:\Program Files\Hugin\bin\dcraw.exe -r 2.089844 1.000000  -v -4 -T "D:\test\test\IMG_0006.CR2"
  Non-numeric argument to "-r"

  Vorgang dauerte 0 s

  
  From here nothing happens anymore. You can only cancel the import.
  If you import one file at a time, as is not recommended, there are no problems.

  Best regards
  Detlef Paschke

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