I ran following experiment (on PW10 and PW11, both running 5.16.6, with
Date and time set to
Set automatically) with side loaded AZW3 book downloaded from Amazon, and one converted from ePub to AZW3 and KFX.
Airplane mode off.
- Side load with calibre
- Delete amazon-cover-bug folder
- Eject
- Manually sync
- Open and close book
- Lock screen shows cover image
- Amazon book shows Delete Permanently option, non-Amazon book does not.
This seems to demonstrate
amazon-cover-bug hack is no longer needed to restore cover thumbnails after sync, at least with 10th generation and later Kindles with Date and time set to Set automatically.
(and reminder that you can also replace notebook/nbk files on Scribe without them reverting)
While it is not direct evidence that side-loaded content is no longer subject to spontaneous removal when Kindle syncs, it sure seems like that should be the case (even if you set 'UI time' manually, I think).