Custom materials not showing up correctly when shared to substance painter

Hello there, I created a custom repeat pattern in PS and followed this YT tutorial to create my own custom print in SA:https://www.youtube.com/watch?v=H9ep1yIwzAY&t=3s

When I was happy with the print, I selected the share button and then sent my pattern to substance painter to texture my mesh with it but for some reason when my pattern shows up in substance the only thing that shows up is the base fabric and not the print that I designed ontop.

Am I possibly doing something wrong? I'm very new to Substance so any tips you have are much appreaicted. This tutorial doesn't do a great job of explianing how to get the texture I see in SA into PT.

Also, how do I make it so that my custom material's base color can be changed to any color?