EndNote X9 problems with APA 7th in text citations

Hi all,

I am using EndNote X9 with APA 7th and at once endnote decided to add an extra author before my et al. I am working on this paper for several weeks and when I reffered to Drummond it would always be Drummond et al but today it suddenly changed all my citations to Drummond, Sculpher, et al. Who knows where the problem lies and how I can fix this?

Many thanks!