No images indexed

I’m using this plugin for a long time, but no images seem to get indexed: https://i.imgur.com/nlpp5Gx.jpg

I can remember that it looked something like this: https://i.imgur.com/NCb4nvY.jpg

That also means no images within my NextGen galleries, but als no images within blogs.

https://www.ads-software.com/plugins/google-sitemap-generator/