Feed images broken in Android; works on the web

This feed shares images from the past: https://feeds.feedburner.com/shorpy?q=rss.xml

When I view the feed in the Android app, the images appear to be broken (i.e., I only see a "broken image" placeholder icon). When I view the same feed from the web, the image shows up without an issue. This is the only feed I'm seeing this problem with. I see the placeholder in both Story and Text modes.