What's wrong with the slurs?

I am attempting to put a slur in my music but for some reason I can't move it at all. I wanted to slur the whole phrase but it will only slur to the note next to it. It's frustrating because the slur was working before this update. Either some new change was made that I don't know of or my pc is just bugging. Has anyone had this problem and gotten it resolved? I'm tired of having these stupid issues with this software.