I have two PCs that should have an identical total count of books, but they do not match up.
PC #1 has 3 more books than PC #2, and I am trying to resolve this discrepancy.
In the first screen shot, I have what appears to be a duplicate book:

When I click on the first book, I get the following result that the resource cannot be opened:

I'm not certain, but I think the problem might have something to do with two different Logos 4 file names for the same reosurce, perhaps one is "LEXBIBLE.logos4", the other "LEB.logos4".
(1) Is that the problem, that the file name changed but the Logos 4 did not remove the old file and now I have a duplicate entry in my Library?
(2) If so, how do I clean up this discrepancy?
(3) Since I have a discrepancy of 3 books, if this is one of the causes of the three, how do I find the other two?
(4) How do I prevent this kind of problem from happening in the future, or is this a "bug" in Logos 4?