flowplayer and "visual composer"/"page builder"

Hello,
I’ve used flowplayer as shortcode a few times with some WordPress front-end editors plugins, like “Visual Composer” and “Page Builder”, since one month ago, and it worked fine.
Now it doesn’t work anymore… or, better, it work but, when I put the shortcode inside the text field, I get a cropped portion of the video (a slice from the top, about 100 pixels).. it seem that is not recognized the right height size of the video.
And, more, if the width of the page is enough, it’s tiled in weight!

Can you help me?
Thank-you
Daniele

https://wordpress.org/plugins/flowplayer5/