HBOMax has a section on their home page that lists content that will be inaccessible soon - so if you want to watch it, do so soon.

I had a bunch of stuff in my Prime queue. Some stuff just waiting for the right mood to be in. Or have some alone time (action movies and such that my wife doesn't care to watch). I was skimming through my queue to select something and noticed that a good percentage of items in my queue are no longer watchable. Suddenly. No advance warning. No hints.

Seems like it would be useful information for customers to know. HBO figured it out. Amazon, not so much. How hard is it to have some simple, basic customer orientation?

Sigh.....