I have an image inside a link block. When I use the editor to change the URL of this link block (or even open the link settings), the image disappears.
When I go into the designer, the actual image is gone from the hierarchy. So Webflow is actually deleting it. It does not exhibit this behavior in the designer, only the editor.
Here is a short video showing what is happening.
Here is my site Read-Only: Webflow - Content Strategy