Node version not being set using .nvmrc in root of monorepo or as NODE_VERSION envar

No, my builds are still failing. I have set the NODE_VERSION envar to 14.17.5.

The build fails when it gets to setting up functions.

Packaging Functions from .netlify/functions-internal directory:
3:18:21 PM:  - __render.js
3:18:21 PM: ​
3:18:23 PM: ​
3:18:23 PM: ────────────────────────────────────────────────────────────────
3:18:23 PM:   Internal error during "Functions bundling"                    
3:18:23 PM: ────────────────────────────────────────────────────────────────
3:18:23 PM: ​
3:18:23 PM:   Error message
3:18:23 PM:   Error: readdirp: root argument is required. Usage: readdirp(root, options)
3:18:23 PM: ​
3:18:23 PM:   Error location
3:18:23 PM:   During Functions bundling
3:18:23 PM:       at readdirp (/opt/buildhome/.netlify-build-nvm/versions/node/v12.16.3/lib/node_modules/@netlify/build/node_modules/readdirp/index.js:262:11)

Thanks for your help!