Jack
Sorry I’ve got you confused. And I should been more specific and said master text frame.
I thought from watching your video that you had single text frames on each page. And both were “inside” (i.e., closest to the gutter). And that the problem was that when you added a page, InDesign placed the text on the outer side of your recto page.
I was under the impression that you were only going to have a narrow single text frame on each page (both closest to the gutter); and maybe leaving the outside for art or something.
If that was the case, that was why I changed the master text frames accordingly. InDesign looks for the text frames when positioning text.
I had said about adding guides in case you wanted to “drag” a regular guide somewhere on your outside area for reference or something.
For example, I just did a job where the situation was similar to the snapshot I posted. All the artwork and sidebars went on the outside of the page. So I “dragged” a regular guide to establish a margin reference for myself so I’d know where to align the art/sidebars.
By inside to inside and outside to outside, I was referring to the page area. In my snapshot, both of those text frames are “inside” (i.e., closest to the gutter). Outside is the outer margin.
I’ve probably got you more confused, huh?
Dwayne