When editing AZW3 files using Calibre, then saving and sending to the Kindle Paperwhite (11th with FW5.15.1.1), sometimes the file displays with the default theme shipped with the device. I can correct it by changing to a different theme and then back to my preferred saved theme, or by changing some element in the theme (preferred font, spacing, etc.) to a different value then back again.
My workflow is:
- Edit file and save changes
- Close editor
- Connect device via USB
- Send file to device
- Eject device
- View book on Kindle
- Remove book from Kindle using Kindle UI
- Goto 1
After a couple of cycles of this, I hit the described bug.
What I am doing is checking that my style changes work correctly, and only the actual reader on the Kindle seems to be 100% accurate with what I will see.
I'm sure this is not a Calibre error, but I would like to know if other users have seen similar loss of their preferred theme. Until I found the workaround, I thought I was completely messing up the CSS, but couldn't figure out what it could be.