Can you turn on OCR logging, to do this:
- Quit DEVONthink
- In Finder select the menu Go->Go to Folder, copy and paste the line below and press Go.
~/Library/Application Support/DEVONthink 3/Abbyy - Copy the attached file to this folder OCR.plist (274 Bytes).
Restart DEVONthink and if the OCR fails, could you send me a copy of the file OCRLog.txt should have been generated in the ~/Library/Application Support/DEVONthink 3/Abbyy folder.