I’ve just exported a single Flow from a large work. (It’s one aria from an opera.) The complete opera is 272 pages.
When I open the exported Flow (as a new document), I get all the overrides of the original layout! So I get all the Flow heading changes, Page number changes, Master page changes etc, etc. So there are still 272 pages, with all but the first 6 being blank.
Is this expected behaviour? The music didn’t appear in its ‘original’ page location, so even if there were overrides that applied to the Flow in the full score, they wouldn’t be on the right pages in the new document. It is of course easy to fix by Removing all overrides, etc.
I would expect an exported Flow to inherit the default Layout of its source project. It might be nice for relevant overrides to get copied over, but there may be unforeseen difficulties with that.