Sadly not working in WordPress 4.0 VC 4.3.4

I am using WordPress 4.0 and Visual Composer 4.3.4

The plugin successfully adds the 5-column layout to the VC editor, however, when I use it and then view the page all the columns appear stacked on top of each-other and not side-by-side.

I can only assume something has changed in the later versions which has now broken this plugin. A real shame as this is exactly what I had been looking for : )