The cropping tool seems wonky to me so I must be doing something wrong. When I am in trim or crop mode, I can't always move the blue tabs. Sometimes I click on them and they all turn grey - so I know I'm clicking on it - but they don't move. Relatedly, with crop I'm usually moving around the outline of the rectangle itself rather than moving in the edges. It lets me isolate a new area, but i don't think it's working the way it should Is there a preference issue? I feel like this is one of those simple little things that will be obvious once I get it.