[R] R does not run under latest RStudio

[Steven T. Yen]

I updated to latest RStudio (RStudio-2023.03.0-386.exe) but
R would not run. Error message:

Error Starting R
The R session failed to start.

RSTUDIO VERSION
RStudio 2023.03.0+386 "Cherry Blossom " (3c53477a, 2023-03-09) for Windows
[No error available]

I also tried RStudio 2022.12.0+353 --- same problem.

I then tried another older version of RStudio (not sure version
as I changed file name by accident) and R ran.

Any clues? Please help. Thanks.