I updated my app to Material-UI version 5 from version 4 and the RTL support is not working anymore.

I looked at the docs and followed each of the steps:

https://mui.com/guides/right-to-left/

The actual result is the application is still LTR (You can look at the TextField component in the Codesandbox link below).

The expected result is the app should be RTL.

And still, The RTL support is not working.

In addition, I created an example version in Codesandbox :

https://codesandbox.io/s/issue-with-rtl-in-material-ui-v5-jtii6?file=/src/index.js

I'll appreciate your help in finding what is the problem.

Thanks.