I did my Master's in A university and then moved on to B for my Ph.D.
Covid outbreak started about the time when I was wrapping up my project, I had most of my manuscript done and was pending for iterative feedbacks from my advisor at A university. Due to COVID, my project got pushed back from priority and now, as a Ph.D. student at B university, I'm re-working my manuscripts to submit to an academic journal.
I don't know what to do with my affiliation in this situation. Should I list mine as of B university? Or should it still be A?