On the main page, works through home.php, the players do not work.
He put the plugins MP3 jPlayer, PB oEmbed HTML5 Audio, HTML5 jQuery Audio Player. Even built-in via shortcode [playlist] tried. On all pages except the main one they work.
Further magic: I delete all the contents except get_header() and the short code itself - it does not work (some are not displayed, for example, standard, others are simply not active). I conclude that the content has nothing to do with it. On other pages, the players work, so the conflict of the connected libraries or something else in header.php also disappears.
It remains only the mechanics of displaying the main page (maybe something with a redirect), but the players work on localhost on pure wordpress. I created the main page not with a news page, but changed it for a static one, in the settings, the result is the same. On this my options are almost exhausted.
Please, tell me where I am mistaken in reasoning or what I do not take into account? At least some options, I will be very grateful.