Don't see featured images

… “soory for miss double posting”

I tried some more research and added some plugins which add featured images to rss
-> https://www.ads-software.com/plugins/wp-rss-images/
-> https://www.ads-software.com/plugins/featured-images-for-rss-feeds/

And I also saw that in my atom feeds are featured images are inserted, but also with atom feed links in see no images.

https://www.testautomatisierung.org/feed/atom/

[RSSImport feedurl=”https://www.testautomatisierung.org/feed/atom/&#8221; displaydescriptions=”true” before_desc=”<div><img src=’%picture_url%’ width=’50px’ alt=” style=’float:left;’ />” after_desc=”</div>” use_simplepie=”true”]

Now I am sure to have features images in my feed, in the desc, in the comments, and in meta tags…
https://www.testautomatisierung.org/feed/

But the plugin is still not showing images with the following code
[RSSImport feedurl=”https://www.testautomatisierung.org/feed/atom/&#8221; displaydescriptions=”true” before_desc=”<div><img src=’%picture_url%’ width=’50px’ alt=” style=’float:left;’ />” after_desc=”</div>” use_simplepie=”true”]

Now I tried deleting cached WP feeds:
All _transient in wp_options, but didn’t help. Any Idea?

Seems to work with my feed with plugin
https://www.ads-software.com/plugins/wp-rss-retriever/