import RealityKit let newModel = ModelEntity( mesh: .generatePlane(width: 1, height: 1) ) var mat = SimpleMaterial( color: UIColor.blue.withAlphaComponent(0.5), isMetallic: true ) newModel.model?.materials = [mat] /* next line breaks transluency */ newModel.model?.mesh = .generatePlane(width: 1, height: 1) /* next line fixes it */ newModel.model = ModelComponent( mesh: .generatePlane(width: 1, height: 1), materials: [mat]) In my code I was doing this every time a plane anchor updated:   self.model?.mesh = MeshResource.generatePlane(      width: planeAnchor.extent.x,      depth: planeAnchor.extent.z + 10     ) This resulted in a mesh updating its size, but the transparency completely breaking. When switching to this, transparency worked correctly, but now I have to fully recreate the model whenever I want to update the size  var material = SimpleMaterial(color: MaterialColorParameter.texture(resource!), isMetallic: true)    material.tintColor = .init(white: 1, alpha: 0.5)    self.model = ModelComponent(     mesh: .generatePlane(      width: planeAnchor.extent.x,      depth: planeAnchor.extent.z     ),     materials: [material]    )   Can we get some bug fixes in realitykit this year? So that we don't have to set isMetallic: true, and tintColor just to use a color with opacity? Or have to fully recreate the model just to update the mesh size? Thanks :)