I have a score in which many instances of unisons show extraneous a2 labels. The attached picture shows one example of many: two bars in which flutes are unison for 8 phrases. Dorico places the a2 at the beginning of each phrase. This happens frequently, but not everywhere in the score. What could be the cause?
Note: In order to meet a deadline, I hid the extra labels. I’m now backtracking to learn how to manage this properly.