Modules jumping around all over the place after publishing/ spacer lines changing colour etc

Hi there,
Our website is www.liquimix.com. I am having issues with modules on the pages completely jumping out of place (swapping with other modules / moving from top of the page to bottom of the page etc) after saving and after publishing. Someone please help me figure out how to prevent this from happening.

Thanks
Holly

I’m having the same issue, any fix?