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[tmodes <1402613@xxxxxxxxxxxxxxxxxx>]

Hugin and enblend are using libtiff (via vigra) to write the images. And they write tiff files always with an alpha channel.
So the shown image was not touched by Hugin at the end. Another software has removed the alpha channel without correctly updating the header. This is nothing which can be fixed at Hugins end.

** Changed in: hugin
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1402613

Title:
  TIFFReadDirectory: Incorrect count for "BitsPerSample".

Status in Hugin - Panorama Tools GUI:
  Invalid

Bug description:
  Can't render the below tiff file created by hugin using any program that uses the official libtiff:
  https://www.dropbox.com/s/4ieoef5nn1rfsaz/IMG_2322-2324.tif?dl=0

  =============
  $ tiffinfo broken.tif 
  TIFFReadDirectory: Incorrect count for "BitsPerSample".
  =============

  Discussion on the VIPS tracker:
  https://github.com/jcupitt/libvips/issues/209#issuecomment-66978787

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