Dude, I was with the same problem. I fixed it doing this steps:
- Deleted the image gallery.
- Added all images at media upload
- Choose the page I want to add (or any page just to copy the code at step 6):
- Clicked at “Add media” button > “Create gallery”…
- Choose the images I wanted; and clicked “Insert into page”
- Now I see the code I want and It works. Example:[gallery gss="1" ids="296,295,294" orderby="rand" options="paused=false&pause-on-hover=true" name="partners" style="width:70pt;height:70pt"]