This isn't a per page limit but a number of thumbnails per unit time. Wait a little bit and revisit the page and more pictures should load. Eventually all should. As long as nobody purges the image pages, once the image loads once it should always load again in the future.

The current limits are 70 per 30 second, unless its a certaun "common" size in which case its 700/30 seconds. This is defined in: https://noc.wikimedia.org/conf/InitialiseSettings.php.txt

renderfile' => [
			// 1400 new thumbnails per minute
			'ip' => [ 700, 30 ],
			'user' => [ 700, 30 ],
		],
		'renderfile-nonstandard' => [
			// 140 new thumbnails per minute
			'ip' => [ 70, 30 ],
			'user' => [ 70, 30 ],
		],

In practise i dont think people use those "standard" sizes all that more often than other sizes.

On Monday, November 29, 2021, Strainu <strainu10@gmail.com> wrote:

Hi,

I have some wikipages with a large number of images (1000+). Those
pages never load completely, as upload.wikimedia.org starts returning
429 Too many requests after a while.

This limit does not seem to be documented on mediawiki.org, so I would
like to know what it the exact value and if there is a way to work
around it (except for splitting the pages).

Thanks,
Strainu
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