GPU Particle Collision changes based on Normal Intensity on Colliding Surface

Increasing the intensity of a Normal Texture on a colliding surface will cause the collision of GPU particles to behave strangely, looks to be falling through floor, when you are using a Constant Acceleration module.

Also reproduced in Launcher 4.8.0-2579680 and Main Promotable-CL-2589716

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1. Create a GPU Particle System with a Constant Acceleration fo -980 and Collision
2. Create a Material with a Normal Texture and increase its intensity by 10.
3. Add the Material to the Floor
4. Place the GPU Particle Immediately above the Floor
5. Adjust the intensity of the Normal back to 1.

RESULTS: Particles will bounce once and disappear through the floor until the Normal intensity is lowered

EXPECTED: Normal Intensity should not affect GPU Collision.

[UE-23848] Bug Status

Fix UE-51650

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