Yes latest version here Data Bridge 1.1.4
Design extender 1.1.5
Ecart 5.0.7
Free Tools 1.0.5
When i disable the preview its ok no js errors on the wizard, it just doesnt place the correct theme on it and i have to place it manually but when constructing i avoid some mistakes with the preview sometimes because it shows me a display of what im doing and if i forgot something i can go in and edit it before publishing or creating the pages