I’m having the same problem
May you help me to fix my citations with same author and same year?
Dear friend
I’m having problems: It’s appearing wrong letters when I cited references from same author and same year!!
Corrected expected:
(Gottsberger and Silberbauer-Gottsberger 2006a; b),
But is appearing in this way: with letter K, instead of “b”:
(Gottsberger and Silberbauer-Gottsberger 2006a; k).
Expected: (Paulino-Neto 2014a, b, c)
Appearing: (Paulino-Neto 2014a, h, n)
Thanks