Hi there,
I am not sure how to explain what is happening. The screenshot shows how, all of a sudden, my in-text citations are sometimes correct and sometimes incorrect, as well as the incorrect formatting for the reference list.

Can anyone point me in the right direction so I can fix?

Thank you!

https://s3.amazonaws.com/zotero.org/images/forums/u7354168/7ufuktg80ugw09vn0xjt.png