Paper2d - tutorial and template projects have different collision bounds?

I’m new to Unreal 4, and I decided to go through the “2D Sidescroller with Blueprints” video tutorial. After that, I created another project based on the “2D Side scroller template”. I used bluprints for both projects.

I’ve noticed a different behavior for the character collision when it comes to the edge of a ledge:

  1. in the tutorial project, the character seems to slip down the ledge, following the shape of the capsule


  1. in the project based on the template, the character seems to follow a rectangular collision shape


I did not found the reason of such different behaviors.

Can someone give me a hint ?

Thanks in advance!

Solved by checking “Use Flat Base for Floor Checks”. See this answer for a full review of the problem.