Memory blows up by camera rotation

thx for your reply. No there are no animations or morph targets. We were able to reduce the unused objects. But the protocol still says we have 2 unused objects but in blender are only the used meshes e.g. materials. We still got some hickups but the memory stays at a constant level of 230mb after the first camera movement.
Zooming doesnt affect the memory or produces hickups. Bevor camera movement the memory is at 11 - 15 mb.

whats the estimated memory usage for an model of 12mb size with 2 basic pbr materials?

is it possible that the draco compression is part of the problem.

{
“code”: “UNSUPPORTED_EXTENSION”,
“message”: “Cannot validate an extension as it is not supported by the validator: ‘KHR_draco_mesh_compression’.”,
“severity”: 1,
“pointer”: “/extensionsUsed/0”
}

or what does this mean i thought babylon is able to handle draco compressed files.

cheers