Problem with DW Trendy Slide shortcode and page builder

I’ve created a new page in DW trendy theme.
Selected page builder, create a new row and inserted a text widget where I wrote the slide shortcode ([dw_trendy_slide slug=”generico_slide-2″])
This is simple, no other row or no other widget inserted…
the result page is formatted this way:
1) On top of the page a full screen slider with the correct photos in the wrong place and with a wrong size.
2) The header of the website
3) the slider with the correct photos in the correct place.
You can see the sample page at this url: http://tatadram.www84.a2hosting.com/?page_id=284&preview=true
If I use the shortcode without using page builder, the shortcode works well.
Any suggestion to solve this problem?
Thank you!
Davide.