I hit a similarly puzzling bug a few years ago in Gwenview (an image viewer) when a user reported it could not open some PNG files of a certain width. I wrote

I hit a similarly puzzling bug a few years ago in Gwenview (an image viewer) when a user reported it could not open some PNG files of a certain width. I wrote about it here: https://agateau.com/2012/qt-image-decoders-stepping-on-each-others/ https://agateau.com/2012/qt-image-decoders-stepping-on-each-...