[Adoby]

There is something wrong with your work flow.

You seem to say that you add the new updated version to calibre, and delete the old version. And when you look in calibre, the new version you just added to calibre is no longer updated? I sounds like you delete the wrong version or never updated the new version you added to calibre.

If you think there is something wrong with calibre, try to reproduce the error involving as few steps as possible. And let us know exactly what those steps are, so we can reproduce the exact same error.