Tutorial URL: https://developers.sap.com/tutorials/cp-mobile-cards-automatic-instance-generation.html
Step 4: Subscribe to the card in SAP Mobile Cards
Here at this point in the tutorial, booster welcome card will also be present. So when we try to subscribe to the Instance card, booster card should be present as below:

Also after subscribing to the Automatic Instance card, 2 cards should be displayed in the app as below

Best Regards,
Priyanka