v2.22.6

Helicone/heliconev2.22.6Sep 28, 2026by mvaligursky

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AI Summary

Fixes a bug in the 3D engine where mesh instances without a material were incorrectly accepted.

Key Highlights

  • Fix mesh instance material handling
  • Prevents invalid mesh instance addition

Full Release Notes

### Fixes

* Fix acceptance of mesh instances without a material in `Layer#addMeshInstances` by @mvaligursky in #9579
 
**Full Changelog**: https://github.com/playcanvas/engine/compare/v2.22.5...v2.22.6

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