Movement input

I want to be able to move around my scene using mouse and touch inputs. The blueprint for the touch and mouse inputs has been set up. The issue is that when I go into play mode the inputs don’t seem to work? When I use the mouse scroll wheel nothing happens. It seems as if the movement input is locked. I have tried clicking the screen to see if it was a case of the mouse not being captured. This didn’t seem to solve the issue. Clicking the screen doesn’t seem to solve the issue.