Ok Moon.
We've got the uploads here.
Vol 0 1a is out of order.
Checking your second test file I see this
New folder (1).jpg
New folder (10).jpg
New folder (100).jpg
New folder (100a).jpg
New folder (101).jpg
New folder (102).jpg
New folder (103).jpg
New folder (104).jpg
New folder (105).jpg
New folder (106).jpg
New folder (11).jpg
New folder (12).jpg
New folder (14).jpg
New folder (15).jpg
New folder (16).jpg
New folder (17).jpg
New folder (18).jpg
New folder (19).jpg
New folder (1a).jpg
New folder (2).jpg
etc.
For huge runs in collections like this I suggest simplifying.
Three digits numbers the whole run. From 001 to 999, don't leave out leading zeroes ever and I'd forget about the brackets altogether.
000-SRAV01a-XXXX, etc
XXX can be anything it's only the starting six matter.
But don't vary the starting ever within a file. In a different file you can of course change it to say
000-SVAV02a or whatever to differentiate it.
Varrying anything withing a file opens the possibility of the order changing even if it looks fine on CDisplay.
I don't think you want collections out there that are incorrect page orders so I wont activate the uploads you've done.
If you'd like to retry another test upload feel free. And when you are confident a re-upload of the full volume is very welcome.
Sorry it's being so difficult on you.
-Yoc