Great! You are not missing out on any cards.
In the attached screenshot, the selected tag is from the Boards and Beyond resource under the Step 1 tag, not Step 2. Therefore, you can be sure these cards are useful for Step 1. However, I notice there is a deck named “Step 2”. The AnKing Step Deck does not include this deck by default.
The AnKing Step Deck does not have any subdecks by default; it is organized entirely by tags. Unless you had a previous deck or manually created a subdeck, every card with thes AnKing Step Deck tag should be located in the “AnKing Step Deck”. The reason these cards aren’t showing up in the “AnKing Step Deck” is that they are currently located in the deck named “Step 2”.
If you would like to fix this, you can select all cards belonging to the AnKing Step Deck that are currently in other decks and move them to the main AnKing Step Deck. You can follow this tutorial: How to move cards from your old V11 deck to a new deck. You can skip the steps for creating a new deck. Instead, simply select all cards with the note type “AnKingOverhaul (AnKing Step Deck / AnKingMed)” and move them to your existing AnKing Step Deck.
You can learn more about the AnKing Step Deck here: AnKing Step Deck Wiki.
Please let me know if you need help with anything else. 