2D Side Scroller- Problem with game start

Development Programming & Scripting Blueprint
1

Hello everyone!

I am using UE 4.12.5

I’m having a bit of a problem with a main menu that I created in my 2D game for my exam. After I start a new game a loading screen shoul show and then a “prolog” should start to play. The prolog is animated text that just scrool itself through the screen and then after that it should load first level. But everything i get after the starting a new game is just the character falling down throught black screen.

This is the start menu and then after clicking at Star Game this happens -

24c54651bfa208153f1e977f94f85c4284e8e2c8.jpeg
24c54651bfa208153f1e977f94f85c4284e8e2c8.jpeg1284×751 128 KB

start.jpg
start.jpg1284×751 128 KB

Here are the Blueprints:
Main Menu Level:

problem.png
problem.png1283×751 20.7 KB

Main Menu HUD:

main level.png
main level.png1540×740 122 KB

Animated text:

main blue.png
main blue.png1919×1037 191 KB

I will be grateful to everybody who can help me with my problem.

I am sorry for my English and for the lack of experience but I am learning only from UE documentation.