Firstly, the plugboards are not involved for collection management. They change the titles and other metadata, but, the collection management uses the data from the columns unchanged.
If you the values used for collections have different case version of the same value, then you will be causing problems. As stated, calibre does it case insensitive. At the end of the connection, you will have whichever was last of the values. And the syncing will then have issues dependent on what was the case the last time you synced.
|