I'm having the exact same issue, I purchased an Indie license in March.

Thanks for the replies. I somewhat found a solution to the problem I was having due to not having access to the rev file. I found a tool that helped me understand what states correspond to which elements in the riv files and visually preview them. Perhaps this will be useful to others in the future ...

Hello, I'm currently learning how to use NoesisGUI+RIVE in Unreal.
I'm new to RIVE and just started learning how to use the editor, etc.

Is it possible for you all to share the .rev file for the Cute Kittens RIVE example for educational purposes?