Rstudio crashes when I use browser() in shiny app with R version 4

I just upgraded my R to version 4.0.3, which I need for some other packages. When I try to debug a very simple shiny app in this version of R, it causes all of Rstudio to crash. As an example, I just added browser() within the server function in example 1 from the rstudio basics tutorial here:
When I run it, with browser(), Rstudio crashes. Any ideas how I can get the browser function working within a shiny app using R version 4?

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