@Tanjamuse: The file you sent me opens fine on my win10 machine in the new viewer. Given that the error is an access denied, it is definitely caused by some program on your machine interfering with calibre. The most likely culprit remains the antivirus program. That error is an access denied while calibre is trying to rename a folder -- there's really nothing calibre can do at that point, if even renaming folders fails. I will add some code to retry the rename a few times in the hopes that whatever has locked the files lets it go eventually.
@isethia: Feel free to downgrade if you wish, or perhaps invest in a better antivirus, one that does not break the functioning of other programs.
|