This could be an issue with all new themes, did not test it, but I know it is an issue with the Climate theme. I am making a page with 30 pages in navigation, this is to test something. I wanted the video I am including on each page to be full width with no sidebar. Of course I made the pages first and then decided what I wanted. Here is a screenshot of the master settings.
As you can see I have Main Counter Columns set to 12, Sidebar Columns set to 0 and I have checked Hide Sidebar. Yet this is what the preview of the Master Style looks like:
There is still a sidebar.
I then decided to preview the actual pages. The first page worked.
But then I checked the 2nd page.
And all of the rest of the pages are the same, even though the master is set the way it is, the settings for pages 2-30 are not set the same as the master:
They do have the hide sidebar checked (even thought it is not hidden) but the columns are not set the way the master is set.
Anyone else see this??