glad to see someone else has stepped up to help - what baffles me is that just adding a different cover should not cause any chapter headings to go astray. & OP claims original books have working chapter navigation
so those search replace regex wizards woirk on mobi code ?
I tried peeking at one of my mobi books with a wizard , but compared with epub, the book code is a horrible condensed mess ; it looked like chapter waypoints had been changed into filepos code by the epub to mobi conversion ?
ps whoever who posted this on kindle forum has the opposite issue - no chapter points in original Kindle book but a calibre conversion adds them OK
https://www.mobileread.com/forums/sho...d.php?t=122072