I've got an issue in one section of my site where I have approx 150 child pages below one parent page, and the page order is not being saved correctly. Other parent pages that have much fewer child pages are behaving correctly.

The page order was not correct after adding all of the pages into the system, and does not save correctly when I re-order them in the dashboard. It seemed to stop working at the point when the dashboard sitemap added paging due to the amount of child pages.

When I change the page ordering in the sitemap, the system does now save a page order, but it is seemingly random. This random order is then reflected in the page lists shown on the front-end of the site.

I have cleared all cache, and re-indexed site etc.

Anyone had this issue, or suggest a possible fix?