style order different in production builds

[acthp]

Converting an existing project to mui, with a webpack build. Mui brings jss styles, which are injected into the page dynamically. Other features on the page use static style sheets. In a production build, webpack isn't aware of the dynamic style tags from jss, which means it can't maintain the style sheet order when building the combined css assets. This breaks the css in production. How do you maintain css order when the build can't see the css?