The factor now creating the most confusion is not some isolated issue. It is part of a much larger pattern in an arrangement, a situation or a relationship.

现在造成绝大部分困惑的原因并非一个孤立的问题，而是某项安排、某个局面或某段关系的大格局中的一部分。

youdao

California has also managed to import some of the grape's Old World confusion factor, since the state's wineries tend to label bottles "Pinot Grigio" or "Pinot Gris" based on whim rather than wine style.

FORBES: Wine & Spirts