Quick answer: Fetch product details asynchronously, match ids exactly to the store console, retry on failure, and only show the store once the catalog has populated.

Your shop opens to empty slots because the product query had not returned, or your ids had a typo versus App Store Connect / Play Console. Loading the catalog properly and matching ids fixes it.

How to fix it

1. Match product ids exactly

Ensure the ids you query match the configured products in the store console character-for-character, including bundle/package prefixes; a mismatch returns no product.

2. Await the details query

Show a loading state until queryProductDetails / fetch returns, then render the catalog from the response rather than from hardcoded data.

3. Retry and cache

On a failed or empty query, retry with backoff and cache the last good catalog so a transient failure does not leave the shop blank.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every mobile error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.

The errors you never hear about are the ones quietly costing you players. Visibility turns them into a worklist.