I closed the Comments panel and moved to my first comment and opened it and it and some others in that pdf and one other pdf that I had used to confirm the earlier "tiny comment font" problem, and now the font size is back to normal.
I closed the Comments panel and moved to my first comment and opened it and it and some others in that pdf and one other pdf that I had used to confirm the earlier "tiny comment font" problem, and now the font size is back to normal.