Pictures of Webarchives don´t load when offline

I just realized that all of the webpages I captured in DT Pro 1.0.1 with the command “We-Archiv erfassen” (German version) in the contextual menu have a big problem: the pictures don´t load when I´m offline…

What are webarchives good for then, If I cannot see pictures when I´m offline?

Actually this should work as long as the page was complete before capturing it. Do you have an example URL for me? Thanks.