Hello Matteo,
I created a completely new website just days before installing your media player, so I am running the newest version of wordpress and doing all of my edits in firefox.
I am using a graphene child theme, but as I said earlier, I attempted many different themes with the same result. I also deactivated all of my plugins leaving the media player as the only active plugin and it did not work.
I wonder if there is some kind of security measure in place within wordpress or the themes that could be blocking the editor from accepting the user options?
Like kpeach111 said, if you have any suggestions on properties or options to take a look at, I will. I’m fairly new to the world of websites so I probably won’t be successful in tracking this down on my own.
1.3.9 is working well so far. Great Plugin! I am loving the option to download specific media.
Thanks,