Rstudio IDE shows tibbles as question marks in boxes?

I am not sure exactly what I did or which information would be useful, but for some reason, whenever I preview a tibble in RStudio it shows me a bunch of question marks like in the minimum example below:

I had trouble finding other people who experienced this issue. Does anyone have advice?

edit: I updated my version of RStudio to 2025.9.2.418 and still no luck.

Are you using macOS Tahoe? If so, this is an issue many people have hit, related to font corruption in Tahoe. More about this and some potential workarounds at: macOS Tahoe: Inline table text encoding error in RStudio with Quarto and Rmarkdown

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