Wow, so i know this is like over 2 years later, but for people still looking for the solution for this, here’s what I found after having the exact same issue.
In our game, we’re picking up objects, and having them Attach themselves to a scene point in our FPC class, like so.
Whenever we look down, it would overlap with the character’s CapsuleComponent, and it would send our player backwards because of weird natural force it has in its collisions, and the lower we’d look, the faster it would go.
All I did was put the collisions to ignore for the Pawn in the object class i was attaching. Check your meshes and make sure that they ignore Pawn in their collisions.