I had this issue too..
Check your CSS and any other plugin CSS for list-style: none;
For some reason, even some styling I’d used on another plugin which was only used on a totally unrelated page containing list-style:none; was affecting my pagebuilder pages..
It’s usually caused by people defining ul,li { list-style: none; } within page / plugin files, when actually it should be .plugin_page_class ul, .plugin_page_class li { list-style: none; } etc..
So yeah, have a look around.. Maybe have a mass-file search for list-style: none (with and without the space!) and check for any where are not specifically defined to parent divs / classes.
Also you could try changing the list CSS to include the list-style/image as !important
Jack
Redid whole pages and everything is fine. Not sure what fixed it. Sorry.