I have about 8 libraries that I use to keep track of books for different kindles in use. I switch between the libraries when I am adding books to them for future reading by members of my family.
What is "A/V/M that you mentioned?
I will review what I have added to my computer in the past but that is a long list of program updates and new software. That is an impossible job.
Any other way to find out what keeps the program crashing? Should I use a separate calibre with each library?
If it is a library, how do I discover what book or books are causing the crash? The crash can occur when I am adding to one of four main libraries. The others have not been added to recently.