React Admin displays very messed up

Question

My RA project renders fine when deploying locally, however, when I copy my build directory to an S3 bucket for deployment, it renders all messed up. Sometimes it works, but

Answer 1

Thanks so much @Kmaschta saved me hours of searching.

I was not only getting the issue shown above... but when I hit the chrome refresh, the application would reload on the far left of the browser with no means of getting there.

I looked at the react-admin issue above react-admin 1782 which was an issue with the dependency given in package.json and internal @material-ui dependency of react-admin

I am editing my answer to show the dependencies with latest versions due to @material-ui 12621 :

@material-ui/core": "1.5.1",

"@material-ui/icons": "1.1.0",

"react-admin": "2.2.3",

"react": "16.4.2",

"react-dom": "16.4.2"