So this is specific to Tableau Public, correct?
Yes that's correct
It is worth noting that I'm trying to access a dashboard with 3 sheets in it. I can access one sheet separately without getting the error, but the two other sheets give me the error when I try to look at them by themselves.
I am also able to look at and interact with other viz's that I have made and saved to my public profile.
This is confusing because last week I was able to save this dashboard, and view it and interact with it online. So it did work at one point, just not anymore.