Ae layers turn black when i make them 3d in screen mode (screenshots) i need help pls :(

Hello guys, im having some issues tryng to work in 3d layers. When i put them in 3d the screen goes black. And im sorry about my english because my mother lenguage is spanish. If you can see the screenshots and help me i would aprecciete that a lot! Because i have other projects with some simmilar issues.

Thanks you!