Hello,
One of our customers reported an issue with the page sorting. When attempting to re-sort and save, they waited a long time (hours) and it never completed. They do have a bunch of pages (365 ... coincidently, you could update one per day for a year before needing to start over again!) so it normally takes a while to save the sort.
After troubleshooting, I found that there were some duplicate PageSort values for the page PageParentPageId + PageAreaID combo. I corrected it by renumbering manually in the database so that there weren't duplicates. That solved it at the time. It appears that if there is one duplicate, the whole save fails.
However, they just reported that this occurred again. This suggests that something is causing the PageSort to misalign. I'm sure I won't be able to provide a repro though since it's months between occurrences and we don't know when it went wrong.
Is there any chance this is a known issue? (they are on 9.10.12) Or, at the very least, if it's difficult to determine the case, can the page sort save be made to be more resilient to duplicate PageOrder ids?
Thanks,
Scott