I had the same problem after update to version 4.10.0 (error shows after exiting the reader)
When updating to version 4.10.1 (also updated some plugins) it went away!
No system changes.
(now: Windows 10, Calibre 4.10.1, Windows Defender AV)
Last edited by Horus68; 02-18-2020 at 09:10 AM.
|