No camera at the start of a new scene

I’ve just bought toon boom harmony 22 and when I create a new scene there’s nothing but grey, no camera frames, nothing and when I try to animate the preview only shows the first frame. I’ve seen that this might be due to OpenGL, if that’s the case what can I do?

In Layers to the left of the Timeline, there is a plus sign where one can add a camera. There should only be one camera in the scene. Hope this helps.