I have just release version 2.13.0 of the plugin. This is mainly a bug fix release with the following changes:
- Change: Change how books are queued when automatically fetching reading locations.
- Change: Sort the results when getting the reading locations.
- New: Choose colour used for letterboxing in covers.
- Fix: Fix handling of epub locations for recent firmware.
- Fix: Error in Manage series on device.
Most of these changes have been in the betas so far this year.
The change for the cover update uses function in calibre version 5.12. If you are using an older version of calibre, there will be no change in the cover upload.
Calibre will announce the update is available in the next hour or so. And if there are any problems, please report them here.