Continuing the discussion from Error Saving File. User-mapped section open.:
I'm getting the same message after update RStudio with the last version (1.3.1093).
sessionInfo()
R version 4.0.3 (2020-10-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17763)