Redeployment after sync & push in Visual Studio Code for GitHub does not show changes made locally

I have been making changes to my monorepo project. Mostly visual changes to the frontend. When I synchronise with GitHub doing sync & push from Visual Studio Code, the changes are not shown after the new deployment to railway which is done automatically when the last commit is detected. Any idea how to fix this? I've checked the files I've modified on GitHub and they are updated to the local version I manage. So I don't understand why they don't show correctly in the new deployment.