@Antohabio what was the page you were editing, what was the template, what was the image that didn't work? Going to need all this information to dig deeper into this problem! Thanks in advance!

I have standard mediawiki template:

[[File:{{1}}]]

On page I define {{1}} parameter:

{TemplateName
|1=ImageName.png
}

I have image inserted to page by template, but PageImages extension in Hovercard extension don't show this image in hover card.
On page this image visibile normal.

Sorry for my english.

Hi @Antohabio thanks for the reply!
Is this a wikimedia site or a 3rd party instance? Is there a link i can use to see this problem? What license (if any) is the image of the file you use?

I tried testing this here and all seems to be working as expected:
https://en.wikipedia.beta.wmflabs.org/w/index.php?title=Test_popups_EasyImage_Template_T157162
You'll see a cup of tea when you hover over the link and when you click the link you'll see the image has been added by a similar template.

I am keen to understand, what's different about your setup.

For example, open page http://anthecology.org/a/6644444453. This page contain link to Arroyo_M.T.K.. Page Arroyo_M.T.K. contain image inserted by template.

On hovercard on 6644444453 page image from Arroyo_M.T.K. don't appear.

I found the cause of images nonappearance. Some of them were too small. Apparently, the extension eliminates the small images.

@Antohabio thank you for working out the cause.

Note you can edit wgPageImagesScores to include large images if you want. It's not very well documented but currently looks like this:

		"PageImagesScores": {
			"value": {
				"position": [
					8,
					6,
					4,
					3
				],
				"width": {
					"@doc119": "Very small images are usually from maintenace or stub templates",
					"119": -100,
					"400": 10,
					"@doc600@": "Larger images are panoramas, less suitable",
					"600": 5,
					"601": 0
				},
				"galleryImageWidth": {
					"99": -100,
					"100": 0
				},
				"ratio": {
					"3": -100,
					"5": 0,
					"20": 5,
					"30": 0,
					"31": -100
				}
			}

I think if you wanted you could tweak the negative scores to match your desires.
e.g.

$wgPageImagesScores['value']['width']['119'] = 10;

Is there anything else you would like help with or may I close this ticket as resolved?

Thank you for your proposed solution.
Thanks for the help, the ticket can be closed.