In both Rmarkdown and Quarto documents, inline table outputs are not displaying any characters and only display as U+FFFD or the question mark in a box, see picture.
I've run through a Sys.getlocale() and Sys.setlocal() command to set the locale to en_US.UTF-8 as well as changing the fonts and display settings in RStudio.
Current RStudio is 2025.5.1.513, Quarto is 1.7.32, and R is 4.3.3.
This may be also due to my macbook running macOS 26 Tahoe beta