This has been a problem for me for a very long time, some embedded content from Medium articles is missing, especially often when reading programming related posts. It does not help to disable Brave shields, nor does it help to disable privacy settings in the Android app. Android version does not matter, I’ve seen this since Marshmallow and I’m currently on Android O.
Randomly chosen article to demonstrate the issue: ‘The Art of Computer Programming’ by Donald Knuth
Screenshot demonstrating the issue:
The articles work fine in other browsers.