styled-normalize | normalize.css for styled-components | Frontend Utils library

I added react router for basic navigation and works fine, but when I run a test it returns an error.

My work is making a React UI Kit/Component Library to be used internally for our products. Everything is working fine while developing and displaying on Storybook.

While testing the library in a generic project out-of-the-box from create-react-app, importing and implementing the components made without React Hooks are alright, but soon as we use the ones made with Hooks - the Invalid Hook Call error shows: https://reactjs.org/warnings/invalid-hook-call-warning.html

Have tried everything listed there(and read and tried the github thread solutions linked on the page), and the component simply used useRef() and nothing else so we know no rules were broken, React and React-dom versions are up to date, and running npm ls react and npm ls react-dom in the project results in react@16.10.2 and react-dom@16.10.2 and nothing else... So it doesn't seem like we have multiple React's?

Any help would be much appreciated!!

This is the UI Kit's package.json