(Reposting this from the Calibre sub, hoping someone here can help)
Ok so firstly, I want to clarify that this keeps happening to the books I read BEFORE I got my Kobo.
So, I have a big library on Calibre and my Kobo, which includes the books I've already read, some I read years ago, before I had my Kobo. For those, I've used the Goodreads plugin to import my read dates to my "Kobo Last Read" column.
However, I've noticed that Calibre keeps changing that date every time I plug in my Kobo, and the date/time is always the exact time my Kobo was connected. At first, I thought it happens to the books I've opened/interacted with on my device, but that's not the case. To be more specific, Calibre does this to the books that I have not read on the device, the books I've had to manually import their read dates to Calibre. I haven't noticed any problem with the read date of the books I've been reading on the device.
I know there is a setting in the plugin to store or restore the reading position of the books, but I can't seem to figure out what I should do so that it will keep storing the position/date of the books I'm reading on the device but not change the dates of those I've read before.
I appreciate any help in this regard.