Properties Not Changing

So this has happened on multiple different files. I change a text font, for example, in one part, then switch to a different part. Then I come back to the original part and the text appears as if it was never changed. Right now I am formatting a bunch of parts for marching band. I moved some rehearsal marks around, edited some part names, changed spacing, and a couple other visual things. I was using quite a few properties that the inspector displays. When I did this for multiple parts and came back to a part that I had previously worked on, all of my changes were lost. This happened multiple times on the same parts, even after saving. I changed a part name from "Tenor Sax" to "Bb Tenor Sax," but it randomly changed back to just "Tenor Sax." On another file, I flipped a bunch of marcatos because for some reason they always appear on top, but then they flipped back on their own. Super annoying.