We've an augmented reality animal interaction app for flashcard. It works with single card. But if we hold more than 1 card and remove any card the camera freezes. For example, if i place Cow & grass card, the cow goes to the grass card and eat the grass but if i remove the grass card when cow is eating then the camera freezes. It's happen for all cards.
I have already solved your problem. You can take now a working project ;) Relevant Skills and Experience Unity 3D Vuforia Proposed Milestones ₹1250 INR - Solve Issue