I’ve known for a while that Observable automatically generates a thumbnail for a notebook based on the first image/dataviz in that notebook. For the most part, the algorithm is terrific!
But once in a while errors like the one below come up, even though everything still works fine if I open the notebook. I’d love to know why this is happening and what steps I can take to avoid it!
Link to notebook in image: https://observablehq.com/@duynguyen1678/the-trump-covid-hotspot.