Sorry, yes. I have the most up-to-date version of Calibre (7.2), but this has been going on for more than a year, so all those versions. Actually, I **think** it started once it switched to Calibre 6, but I could be mis-remembering.
Not sure what you mean by desktop setup, but it's just my desktop, nothing special about it.
I think this is all the rest of the information: