Using version 7 and getting this:
Error - 'api-extractor' sub task errored after 6.68 s
Unsupported export "BabylonFileParser" in [C:/Users/haroldma/Documents/repos/sp-client - Copy/common/temp/node_modules/.onedrive.pkgs.visualstudio.com/babylonjs/4.0.0-alpha.22/node_modules/babylonjs/babylon.module.d.ts#33477]
The typings file for babylon.js is here
This was working fine before the update.