Some pages into some djvu files built by IA Uploader suffer from a "corrupted text hierarchy", resulting a disaligment between OCR and page image into wikisource nsPage edit into all following pages.
You can download a corrupted djvu file from this link:
You can test for corrupted structure running this DjvuLibre command:
djvulibre -u namefile.djvu -e "output-txt"> dummy.dsed
If "text hierarchy" is corrupted into one or more pages, you'll get an error.
Djvu files, built by IA Uploader when lacking into IA filse, should be tested and possibly fixed before uploading them into Commons.