what does this mean?

What does this mean and how do I change it? Capture 1 shows an audio event with a box around it, i.e. you can’t see the grid lines through the event. Capture shows an audio event where you can see the grid lines. Capture 1 doesn’t allow me to crossfade to similar events. What’s this all about? And how did I end up here?

I think it is an Audio Part, which is a container for multiple Audio Events. Try Dissolve Part.