Issue with tex file

[MokeEire]

Full error below, when knitting rmd file, the tex file returns an error with package unicode-math. This seems to be a common error after this package was updated

Full error: "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! keyvalue error: "option-unknown" ! ! Unknown option 'vargreek-shape' for package unicode-math. ! ! See the keyvalue documentation for further information. ! ! For immediate help type H . !...............................................

l.385 \ProcessKeysOptions {unicode-math}

pandoc: Error producing PDF Error: pandoc document conversion failed with error 43 Execution halted"