Flexdashboard RMarkdown Cache preventing dygraphs from loading, how do I disable cache?

I have a flexdashboard that uses RShiny to display a reactive dataset. The dashboard works and data updates automatically when a newer version of the data is available, however if I close the display and rerun the markdown, the dashboard generates the layout with headers but there's no dygraphs. The R Markdown tab shows a spinning circle, like its working but never loads. It also doesn't work to show the dashboard in a browser. If I make a change to the rmd and resave it or if I delete the cache folder, the app runs just fine. How do I get around this?

I published the app here: https://spangle.shinyapps.io/dashboard/

Here's what happens: https://i.imgur.com/VqQk12t.gifv