mrkgnao: Sorry.
I reset manual sort and walked through my library from page 1 to 13.
Repeated this five time (each time resetting and walking).
Here are the exceptions I got on each attempt:
1) Duplicates + empty pages
2) Everything was OK
3) W-Z on page 1, pages 12-13 did not load (no duplicates)
4) Page order incorrect, pages 12-13 did not load (no duplicates)
5) Page 11 actually contained the games of page 12 (T-W), pages 12-13 did not load (no duplicates)
Attempted once with import {} instead of reset. No better.
I see celebration was premature then..
So the duplicates thing was only an issue once and the rest of the time it looks like different problems but with a similar outcome.
When the pages didn't load what output was there in the console?
A proper page load should look like this (for any page after the first anyway):
afGetData Called page: 2
Filters not changed, product list does not need updating
Manual Sort Products
Retrieve Manual Sort Order
Manual Sort Done
Finish Data Load (Manual Sort)
Allow Manual Sort
Any other errors showing?