Quick answer: Tag resources correctly, make and retain the resource request until done, and handle download progress and failure.

On-demand resources not loading is a tagging or request problem. Here is how to fix it.

How to fix it

1. Tag resources correctly

On-demand resources are grouped by tags assigned in the build. If assets are not tagged, or tagged wrong, the request cannot find them. Confirm the tags match what you request.

2. Make and retain the request

Create the resource request for the tags and keep it alive until the content is loaded. A request that is released early cancels the download, so the resources never become available.

3. Handle progress and failure

Show download progress and handle failures (no network, storage full) gracefully, retrying or messaging the player. An unhandled failed download leaves content missing with no indication why.

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.

Ship the fix, watch the signature disappear from the next build. That's how you know it's really gone.