Preview & Embed - Player and player for playlist

If you go to the “Entries” --> Preview & Embed --> When I watch a video I can select a normal player or a playlist player. Why does the playlist player come out? It should not only appear the normal player:

I comment on it because if you go to the “Playlists” --> Preview &Embed --> only the playlist type players appear in the list as is logical and normal:

I have found my problem because in the tags of the playlist player I had “html5studio,player,playlist” and the tag “player” was left over.