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Tested on Meta.SE, SU, and AskUbuntu with Chrome on Win10.

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    Interesting it's actually only 120k so not too big, I'll try to check other possible limitations then. Commented May 9 at 17:15
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    Well my best guess is the image dimensions which are huge (2373x1889) but only a developer can confirm. If you can resize that to e.g. 800px width (and respective height) this would probably work, and you can update the bug report with that info. Commented May 9 at 17:20
  • @ShadowWizardLoveZelda thanks I'll let dev debug as resizing may also change other gif info. But I guess you're correct. Commented May 9 at 17:24
  • (Disagreed with the edit proposal removing the screenshot: need to show error message, I should've edited it though instead since it's good to add the error message text) Commented May 9 at 17:44
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    @anonymous about the edit proposal: thanks but the screenshot shows more info: it's a Q (not A or chat), shows error message location+color, shows gif image preview, etc. Commented May 9 at 17:57

2 Answers 2


I had a look at this and was able to determine the root cause of the problem. The image in question is a large animated gif - 2373×1889 pixels with 114 frames. An image with these properties is not going to work.

We are working on providing better documentation to provide the upper-bounds limitations of images, as well as better error messages to indicate this in the near future.


A clearer error message has been added:

Image uploads are limited to 50 megapixels; please use a smaller image

enter image description here

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