Disabling DBuffer Decals causes Decals not to render

Disabling the Decal DBuffer in the  Project Settings>Rendering causes the Decals to not render on geometry that overlap their respective Decal Actor.

Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5275346), 4.23 (CL  - 4980862)

1. Download the attached project
2. Open the NewMap level
3. Make sure the Decal Actor volume is overlapping the floor.

Expected: The Decal Material should appear on the floor within the volume

Result: Nothing additional is rendered on the floor

"Session Disconnected" UEFN

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