Can't deploy in custom battle

I need help! I was very excited to make a custom battle, but no matter where I set the deployment zones, when I go to deployment I cannot see them, and thus cannot place any ships (no zone shows up, and when I drag a ship to deploy it stays red and cannot be placed). Can anyone help? Is there a way to zoom out during deployment/hotkeys I am missing? I watched a developer video and their custom map and deployment worked fine, but not for me. Help!
I’m using the Steam version, and haven’t played any of the campaign or regular scenarios yet, or designed my own ships, I’m just trying to use the default ships for a custom battle. I set pilots for about 200, and fleet points at around 10,000.