Can I use 2 different Reality Composer project in the same ContentView?

Question

I'm new in Reality Composer world and I'm doing a project where I need to load in the same App more than 1 reality composer project but it doesn't work. For exemple, I have 2 different RCproject, pro1 and pro2, I put them in Xcode and I load them in the contentView in this way

let boxAnchor = try! pro1.loadMenu()
let boxAnchor2 = try! pro2.loadScene()

arView.scene.anchors.append(boxAnchor)
arView.scene.anchors.append(boxAnchor2)

when I start the project on the ipad it installs the app and it works, it recognizes the image I use as an anchor and loads the correct project but after the first interaction it does nothing. If I change the framed image with the one connected to pro2 the app loads the right project but, again, after the first interaction it does nothing.