I am trying to do a simple module from power automate training but nothing works as the demo does. Like trying to add fields to my flow from in the stage option clicking the link for adding fields and forms brings me to this page.

with no ability to add fields like I see in demo screen shots, instead i have to manually navigate to power apps solutions to access the ability to add columns (fields). Adding any data type works except the exercise calls for New Option Set, which i assume means a choice or choices type. that being said i need to create my own custom entries so I choose new choice

and add in my data

and then 90% of the time I'm greeted with the error you see below

I have tried many variations of using choice vs choices, renaming the data different from the variable name and I'm getting nowhere in understanding what is going wrong. any help would be greatly appreciated.