How to correct camera's position for 2D Sidescroller with Blueprints


I’m studying the 2D Sidescroller with Blueprints video tutorial, and when I play the level, the camera’s position is wrong. I didn’t find the tutorial mentioned this, so how to correct the camera position?

the screenshot of playing level is like this:

and the tutorial link is here: A new, community-hosted Unreal Engine Wiki - Announcements and Releases - Unreal Engine Forums

Thank you

Hi does anyone can give me some hint?Thank you

Did you rotate your CameraBoom correctly? Looks like it faces the direction the sprite looks.