Hi @colin.magner!
Welcome to the community! Feel free to Introduce yourself 🙆 if you haven’t already! 
I tried reproducing the issue in my computer but everything seems to be working fine. I can:
- Fetch the example stream you provided with no issues (thx for sharing it)
- Fetch my own created streams anonymously and using a token
- Fetch streams that are public anonymously and using a token
It occurs to me that it may have something to do with your credential settings in PowerBI
Then clear any existing entries referring to Speckle from the window that will pop up.
This will force PowerBI to re-request your credential strategy the next time you fetch data. I suggest you try both:
- Accessing the data without providing a token (the Public Stream option).
- Accessing the data by providing a token (the Private Stream option).
Since auth tokens do expire (@dimitrie please correct me on this one?), make sure you create a new token when you try this.
Let us know how it goes! 