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Maniphest T416217

Validate broken thumbnails for some Commons images
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Assigned To
doctaxon
Authored By
doctaxon
Feb 2 2026, 5:43 PM
Tags
Referenced Files
F71650728: image.png
Feb 2 2026, 5:43 PM
F71650718: image.png
Feb 2 2026, 5:43 PM
F71650738: image.png
Feb 2 2026, 5:43 PM
Subscribers
Aklapper
AntiCompositeNumber
doctaxon
Nylki

Description

https://commons.wikimedia.org/wiki/File:Dehio_191_Arbona.png does not display the thumbnail in the file version list. That's why the file is not displayed in galeries, see usage links.

at least one more file: https://commons.wikimedia.org/wiki/File:Dehio_191_Vaux-de-Cernay.png

image.png (369×1 px, 72 KB)

image.png (301×1 px, 55 KB)

Below the usage: https://als.wikipedia.org/wiki/Chor_(Architektur)

image.png (486×1 px, 237 KB)

(I tagged the Thumbor project, but I'm not sure.)

Event Timeline

doctaxon created this task.Feb 2 2026, 5:43 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptFeb 2 2026, 5:43 PM
Aklapper renamed this task from Broken thumbnails for Commons images / server problem? to Broken thumbnails for some Commons images.Feb 2 2026, 6:52 PM
AntiCompositeNumber subscribed.Feb 4 2026, 3:10 AM

Fixed with pngfix.

AntiCompositeNumber closed this task as a duplicate of T285875: Thumbor fails to render PNG with "Failed to convert image convert: IDAT: invalid distance too far back", returns 429 "Too Many Requests".Feb 4 2026, 3:10 AM
doctaxon reopened this task as Open.EditedFeb 7 2026, 10:56 AM
doctaxon claimed this task.
doctaxon added a project: TaxonBot.

Reopened this task:

Initializing an automatic bot algorithm to find IDAT invalid thumbs, repair its files and reupload the corrected files to Commons.

doctaxon added a comment.Feb 7 2026, 10:56 AM

Testing algorithm ...

doctaxon moved this task from Backlog to TaxonBot on the TaxonBot board.Feb 7 2026, 11:03 AM
doctaxon triaged this task as Low priority.Feb 7 2026, 11:09 AM
doctaxon renamed this task from Broken thumbnails for some Commons images to Validate broken thumbnails for some Commons images.Feb 7 2026, 12:17 PM
Nylki subscribed.Sat, Feb 14, 7:39 PM
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