I added a text frame to one of my layouts on page 11. (It was a bit too much (dialogue) text to add as System Text.)
Then I imported a new flow in XML, which appended itself after the earlier flows.
The page override shifted to page 17. (From second-to-last page of the original doc to second-to-last page of the added flow.)
Can anyone explain the program logic behind this so I can predict it in the future?
(I found that by using “Swap With Previous Page” I was able to move the override to the correct page, but that would have been difficult if I had other overrides in between the two.)