Originally Posted by purple mink
Still getting the same "buffer" errors in version 1.32 in Calibre version 7.4.5
Hmmm. Can you run it in debug mode? (easiest way is to use the gui method mentioned in the first post so it displays the file after you exit calibre).
Then you should be able to scan the output from the top to see which book is causing a problem.
Can you post the error messages again, in case the line numbers changed/etc. It would be interesting to have the last book processed as well if its not an issue with you.