I believe that my no solve mode on my sketches never turns off (I can't drag using the corner of lines and my lines that should be coincident with one another break apart when I drag) even when I toggle it on and off through tools->sketch settings->no solve mode.

It's especially bad when I use the polygon tool and I can still drag the lines away form one another.

Does anyone know how to fix it?

I am running Solidworks 2015 and didn't have this problem until a week ago.