After Effects Track Matte not available in Online Tutorial
So I'm watching this tutorial online:Retro 80s Intro - After Effects Motion Graphics Tutorial - YouTube
And at the 2:28 mark the guy changes the Track Matte as "Alpha Matte Grid"
But when I go to do this effect it doesn't work because nothing is there. I followed this tutorial word for word but I don't know whats wrong.
When I go back through the process it seems that everything's good until I make the Grid layer 3D but you can clearly see in the tutorial he makes it 3D and he has the option available.
I provided some screenshots for visuals



