Using Finale 25 on a Mac running OS 10.10.5 - I have copied a score and chose "Select All" and "Clear all items" before inputting new stuff (because I liked a lot of the features I had put into that score previously).  I put in my new score materials in scroll view, as I usually do.  When I went to page view, however, I saw that the staff style "12b. Force Hide Staff (Collapse)" was still applying itself to certain staffs in the score.  I selected everything using the Staff Tool, and chose "Clear Staff Styles" from Score & Parts, but the staff style is still applying itself.  I did the same thing, this time selecting "Parts Only," and then again, selecting "Score only," but it is still applying itself.

How can I fix this, and what should I do next time to make sure it doesn't happen again?