cut scene issues

Hey All,

I'm having a difficult time figuring out why this is happening. When I edit my scenes, I usually cut/trim. Well for some reason, the scenes that are trim/cut often plays fine but at the end, it attaches the previous scene. For instance, if my first scene is a car and I trim the second scene to be a bike. The second scene will play and showcase the bike but right before it ends, the car is show again as part of the bike scene.

Do you know how I can correct this issue? Thanks so much!