APA 7th edition et al error
I have found if an author is the first author on a several authored paper and zotero is citing it correctly as lets say (Smith et al., 2012) if the same first author has a paper with several authors again (but different from the first paper) in the same paper and those papers are cited simultaneously for similar points then zotero will combine them as (Smith et al,. 2009, 2012). I don't think this is in line with APA but I don't know how to fix it without just editing the output.
https://blog.apastyle.org/apastyle/2012/12/how-to-cite-different-groups-of-authors-with-the-same-lead-author-and-publication-date.html#comment-6a01157041f4e3970b01a511aca97c970c
@bwiernik is that also your understanding?