In Chameleon 4.x if you set [MediaWiki:Mainpage-title or MediaWiki:Mainpage-title-loggedin](https://www.mediawiki.org/wiki/Manual:Main_Page) nothing will happen. On the very same wiki, if you switch to another skin (vektor), the title of the mainn page will show as expected.
In Chameleon 4.x if you set MediaWiki:Mainpage-title or MediaWiki:Mainpage-title-loggedin nothing will happen. On the very same wiki, if you switch to another skin (vektor), the title of the mainn page will show as expected.