I get the same issue, I have had to recreate the page many times over. As soon as too many rows are added ie 7 in my case or the row is changed from boxed to full, that’s it the page gets corrupted and has to be done over again. I am trying to track down exactly whats is causing it. I havent asked it to do anything out of the ordinary just basic coloured rows, no animation and no plugin code or shortcodes.