Und wieder gab es ein Update von Divi bei dem folgende Änderungen durchgeführt wurden:

version 3.19.3 ( updated 12-31-2018 )
– Fixed incompatibility issue with some third party themes and plugins that caused the Visual Builder to fail to load with a “Cannot read property ‘id’ of undefined” error.
– Fixed a bug that caused the 3rd page in the blog module not to load in some situations.
– Fixed compatibility issue with the WP Ultimate Recipe plugin, and other plugins that create null shortcode objects.
– Fixed Divi navbar overlap in the Visual Builder when switching from Wireframe mode to Desktop mode.
* js/custom.js
* scripts/frontend-builder-scripts.js