I am having similar issues with the changes on the page not reflected in the live site.
I do not think however it is the problem with SPB but with the Helix template. This template has somewhat nice design and options, but there are tons of things not working as expected. I keep beating the drum of FIXING BUGS and so far not much improvements.
For example I changed the page background in the template and the site still does not show the change. I haven't tested this locally so perhaps that is one last thing to check.