I noticed the same thing @lino4000 !
To bad you’ve gotten no answer.
If you write [span class=habla]Text[/span] the plugin adds the ” ” but in my case, maybe yours as well, I want to add two classes, like [span class=habla blabla]Text[/span] but that does not work, then habla gets the ” ” but the blabla class ends up outside of the quotations.
Some support here would be great!