Oh my! It wasn't the exact solution because I got stuck at "CTRL+F = FIND FUNCTION then type "MS Sans Serif 8,10,12,14,18,24"". So I figured that I don't have that font. Downloaded the font and it worked instantly without even restarting or anything.
Thank you very, very much! I'm so happy I can edit again. :)
I have this problem (with the fx window being cut off) also. I am on Windows 10 with all updates, Vegas Pro Edit 15 build 416. I checked the MS San Serif font in the registry and the C:\Windows\Fonts folder and in both locations it refers to "micross.ttf" and not "sserif.fon" Not sure what to do now. I have clicked and read (I think) all the threads and links about this issue. Any help is appreciated. I know this is a Movie Studio forum but the problem seems exactly the same and I thought the solution is probably the same.
I also tried the VP16 Trial and it does the same thing. I am not sure it has to do with fonts. The whole fx GUI editing window is cut halfway off. The text that does appear seems to be fine.
OK. I got it working. For any who see this problem... It appears the "true type" sans serif font is the only one in the base windows installation. My guess is that this font needed is an older style, non-true type font. I just googled "MS Sans Serif 8,10,12,14,18,24" and downloaded the font file from a website. Then double click the .fon file in windows and it will show you samples and have a button in the window to "install".