Google search console image indexing issue

[21centuryweb]

Google search console tells that only '58 out of the 3553' images in the images sitemap are indexed. But if I search "site:example.com" in Google images there seem to be lots of images.

There are no errors in the sitemap and I am still getting reasonable number of image search hits daily.

Are the webmaster tools stats for images indexed accurate?

When I click on the Sitemap Errors & Index Errors

this is what i get - Error details: No errors found.

https://www.screencast.com/t/pqL62pIc