R 4.2.1 is scheduled to be released next week with a number of Windows-specific fixes. All Windows R users currently using R 4.2.0 should upgrade to R 4.2.1. This text has more details on some of the fixes. R 4.2.0 on Windows came with a significant improvement. It uses UTF-8 as the native encoding and for that it switched to the Universal C Runtime (UCRT). This in turn required creating a new R toolchain for Windows and re-building R, R packages and all (statically linked) dependencies with it (Rtools42, more details on the …