I cannot really give you a mini-example as my mini-example works but the big main file does not, sorry! So, I am posting just all my usepackage, just in case it has to anything with them:
\documentclass[twoside=semi,bibliography=totoc]{scrbook}
\usepackage[utf8]{inputenc}
\usepackage[backend=biber,natbib=true,style=apa]{biblatex}
\setlength\bibitemsep{1.5\itemsep}
\addbibresource{mini.bib}
\begin{document}
\textcite{Manabe1975-fz,Manabe1967-oy} says hi. \textcite{Sherwood2010-er} say goodbye, \textcite{Simmons2010-qx} say nothing.\
\printbibliography \newpage
\end{document}
My mini example correctly outputs
Manabe and Wetherald (1967, 1975) blabla Sherwood et al. (2010) blabla Simmons et al. (2010) bla
but my big file compiles
Manabe and Wetherald (1967, 1975) blabla S. C. Sherwood et al. (2010) blabla A. J. Simmons et al. (2010) bla.
They are based on the same bib-file. Do you have any idea how to exclude "S. C." and "A. J."?
uniquename=falseanduniquelist=falseas package options in biblatex. – KMFWeb Feb 28 '22 at 20:35