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Specific Thumbnail generation for TIF file not working anymore
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Since an unknown date, the thumbnail generation for an .tif file on Commons is no longer working. The file:
It was working at least 1.5 years ago when I was editing the file description. The file is still in use in the german article. Currently the usage in enWP has been replaced with its JPG equivalent:

It should be checked if only the file is broken (works with an image viewer under Windows) or if there could be other files affected.

Beste regards,

Event Timeline

Reaper35 created this task.Apr 20 2016, 5:11 PM
Aklapper renamed this task from Thumbnail generation for TIF file no longer working to Specific Thumbnail generation for TIF file not working anymore.Apr 23 2016, 9:54 AM
Aklapper added a project: media-storage.

Downloading and using libtiff-4.0.10 to run tiffinfo -D Tessie_Reynolds_02.tif, I get:

TIFFFetchDirectory: Can not read TIFF directory count.
TIFFReadCustomDirectory: Failed to read custom directory at offset 4048276.

Successfully opening the file with gimp-2.10.8 I get a warning:

** (file-tiff:10145): CRITICAL **: 18:06:03.085: Directory Image, entry 0x8769 Sub-IFD pointer 0 is out of bounds; ignoring it.

Is it same issue?

In Arabic Wikipedia article

In Commons

But working in other wikis?