This article was written for Page Builder Sandwich 5 or earlier. Page Builder Sandwich 6 is a new block builder, so some steps and screens here may differ. Getting started with version 6
Jetpack
Page Builder Sandwich should be compatible with the different modules of Jetpack.
Jetpack’s Markdown Module
The Markdown Module does something special when saving content which results in changes getting lost during the markdown conversion. To handle this, markdown text in the backend editor turn into html tags when saving your changes from the frontend. (Thanks to Jake Jackson for helping out)