HighlightLayer - Cannot add an uniform after UBO has been created

When I add Highlight layer to my mesh, then i got error: " Cannot add an uniform after UBO has been created"

PG with error: https://www.babylonjs-playground.com/#TUNZFH#17 -> when you click run next time, then console do not generate errors. When I remove mesh "leatherHelm" then I can open PG without error https://www.babylonjs-playground.com/#TUNZFH#19.