Same problem since yesterday or today (it worked 48 hours ago).
R Version:
R version 4.1.1 (2021-08-10) -- "Kick Things"
Copyright (C) 2021 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
RStudio version:
RStudio Server
Version 1.3.1093
© 2009-2020 RStudio, PBC
"Apricot Nasturtium" (aee44535, 2020-09-17) for Ubuntu Bionic
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36
EDIT:
I can replicate the problem on another machine (edited 25.10.2021) working on local, hard-drive-installed R + RStudio versions rather than R Studio Server:
R version 4.0.2 (2020-06-22) -- "Taking Off Again"
Copyright (C) 2020 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)
RStudio Version 1.3.1056
© 2009-2020 RStudio, PBC
"Water Lily" (5a4dee98, 2020-07-07) for Windows
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.12.8 Chrome/69.0.3497.128 Safari/537.36