@Andrew, I saw the same thing. I ran that batch file via TRIGGERcmd - nothing seemed to happen, but something did happen. You have a pause at the end, so it stayed running behind the scenes. I found mine in Task Manager when I showed the "Command line" column.
e8e5aa1a-853f-4a51-8219-4163bb19bc9b-image.png
Try adding something to your batch file that you could actually see, like this:
@echo off title This is your first batch script! echo Welcome to batch scripting! calc