Title Styling CSS not displaying in Editor view?

I have installed DropEditor and added custom css for the H Tags. I can see the applied styles when adding the css in the Title Styles view.
However, when viewing an article, the styles are not showing up - still see the default editor styles.

Also, the Enable button is set to YES.

I currently have a membership to DropFiles and would like to resolve this to ensure this feature is working before considering upgrade to adding DropPics.

Thanks

Figured it out - needed to clear cache