Audio Attenuation falloff is applied even when turned off when called in Blueprints

The Sound Attentuation is not ignored when disabled as audio played from a Blueprint.

Tested in 4.19.2 (CL - 4033788), 4.20.2 (CL - 4302132), 4.21 (CL - 4313833)

1. Create a Blueprint project
2. Import a .wav file to create a Sound Wave asset
3. Create a Sound Attenuation asset and disable the 'Enable Volume Attenuation' setting
4. Save the asset
5. Create a Blueprint Actor class called NewBlueprint
6. Within the Event Graph, add a 'Play Sound at Location' node to be executed by the BeginPlay event
7. Add the Sound Wave asset as the Sound, (100000.0, 0.0, 0.0) as the Location, and the new SoundAttenuation Asset as the Attenuation Settings for the 'Play Sound at Location' node
8. Compile and Save
9. Add the Blueprint to the Scene
10. PIE

Expected: The Audio should be playing.

Result: The Audio cannot be heard.