I was using my version of after effects cc 2015 yesterday and everything was working properly. Today I tried using it and the value sliders in my composition window are gone. now I cant select whether to add or subtract masks, change opacity, adjust audio levels, nothing. I do a lot of rotoscoping so not being able to use mask is not good. I tried reinstalling after effects but even that didn't help. I need after effects to work. Any help is greatly appreciated.