randomly generated artifact sets in random maps.

Hello everyone. I'm new here, and like many of you, I'm a fan of the Heroes of Might and Magic III world. It's especially helpful on the subway on my tablet:)
My question is this:
1. I love playing random maps in "Armageddon's Blade" because you can create them endlessly. I recently learned about composite artifacts and set out to collect them. During the game, I've already collected several variations. For example, "Well of Magic" and "Elixir of Life," but they don't combine into a single super-artifact. No notification appears offering to combine the composite artifact, or when I put them all on a hero and right-click on any of them, only its property is displayed, and nothing more. What's wrong?
2. I also downloaded "The Shadow of Death" and "Erafia" - I thought there wouldn't be this bug... but in these series, there are no random maps! And I was disappointed.

Help me figure out the composite artifacts!