My Paper Character will not stop bouncing into the Y Axis

I am making a 2.5D platformer with Paper Characters moving on 3D objects across the X and Z axes. I have added constraints to lock the player’s Y axis movement and rotation. However, every time my character jumps on the head of a “goomba” so to speak, my character bounces across all 3 axes including the Y axis. Following such collisions, the player stops being aligned with the otherwise 2D level.

How do I fix this? What additional information can I provide to help solve the problem?

You may have correctly inferred that I am extremely new UE5. Thank you in advance