Model or native material unavailable in Play

A model could not be loaded or its node/primitive selector could not be resolved, so the runtime drew placeholder geometry and kept playing. Invalid emissive/material slots or unavailable native material graphs report the same warning while retaining source or last-good material data.

#Common causes

• The asset's source file is missing or its import failed (see the matching ARA7303 or ARA21xx diagnostic).
• The cooked generation was removed from the cache while the player was running.
• A node name is missing or ambiguous, a primitive index exceeds its subtree, or an emissive material selector does not exist in the source.
• A native graph/instance or one of its textures is unavailable, or a reachable expression cannot lower to the current PBR contract. The warning identifies the graph/node.

#Fixes

• Choose an existing source node/material name or numeric index. Use name:3 for a numeric name; use a source node index when names are duplicated.

• Use unique, in-range subtree-local override slots. Check referenced surface graphs and instances; fix the named unsupported expression or import its texture.

• Restore or re-import the asset, then Play again (or let hot reload swap it in).

• Point the referencing field at an asset that exists (property.set).

• Code: ARA7310

• Constant: runtime::ASSET_PLACEHOLDER

• Reported by: ara-runtime