We are having the same issue - on xbox playing split screen. The left side always shows up, the right side is sometimes all black screen. The amounts in the sold columns are not the same on both screens. Sometimes they are showing zero, sometimes not. Could not find a pattern - like if one of us sells items but not the other, or both of us sell, or what we sell - influences it. Or the time we end the day, or whether we fell asleep inside the house, in the bed, or outside.