Sequencer - Shot Not Visible on Master

I am learning the sequencer by following along with the Sequencer Quick Start. I’m on Step 5 which is adding the shots to master. The first shot shows up fine but the second does not. Meaning it shows as a blank film strip on the master sequence but it will not move the Cinecamera. The idle animation does play but the camera does not work and therefore unable to capture. Any suggestions?