There appears to be an issue with dart sass in a basic create-react-app project where it fails to compile. This was originally reported here:
https://github.com/react-bootstrap/react-bootstrap/issues/6039
Dart sass has issues parsing the negative margin values in the make-row mixin.
As a workaround, we can put the negative value in front of the var when doing the multiplication, and this will allow the production build to compile
Fixes #35018 (closed)