Bioconductor 3.20, learnr, and ggplot in rendered .Rmd document

Hello,

I have been running into an issue where code that generates a plot using ggplot2 in a rendered learnr .Rmd document times out and cannot be run no matter how simple or complex the plot is.

This issue doesn’t occur on my local computer when testing the document, nor when running the code in the .Rmd file itself, and only seems to occur when run in an environment that’s using Bioconductor 3.20. It works fine when using the Bioconductor 3.19 configuration.

Has anyone else seen an error like this or perhaps know a little more about it? I receive the same error when working in a container on SciServer, so I do not believe the error is necessarily AnVIL specific, but I do wonder whether or not it has to do with some kind of connection to the web as one of the errors I have seen it give me (albeit rarely) is:

Error 502: Bad Gateway
The server returned an invalid or incomplete response

Thank you,
Sayumi