OCR Not Functioning Properly

I tried to OCR a 26 page .pdf which was 22 MB.
It was originally 26 seperate jpg files that DEVONthink merged into one pdf.

During the transcription, my disk space starting disappearing. DEVONscribber wrote 11.6GB to the cache then spent about 25 minutes recognizing 4 pages until I just quit the process. I used OmniDiskSweeper to clean out the temporary files, restarted DEVONthink, and tried again. Same result.

What’s going wrong?

Please start a Support Ticket and provide more information about the source files (and potentially the files themselves). Thanks.