I am using the reference manager since a few month.
Usually I cite sources of the same author and the same year in the text as follows:
Oliver 1999a, Oliver 1999b and so on.
In the last few month I had no problems with this kind of citation.
But since yesterday the Reference Manager uses this in-text-nummeration (a, b, c etc.) also bei sources with the same author but different years!
That means I have citations like this in my text: Oliver 1985a, Oliver 1999b.
Could you give me some feedback where the problem could be?
I am sure that I haven`t changed anything in my output style since yesterday.