Texture reprojection from one plane to another produces displacement map with a pattern

Found in 1.5.1.118081

Project:

[Link Removed]

Message from customer:
"The problem occurs when using the texture reprojection tool on a surface scan to bake model details onto a simple bake plane (one quad, two tris). I suspect this isn’t limited to surface scans or simple planes, but that’s where I first observed it.

When remapping the baked 32-bit displacement map to positive values (auto leveling) and increasing the contrast, noticeable step patterns appear in a perfect grid (see attached). Initially, I suspected RealityCapture was subdividing the bake plane three times before reprojecting, but this theory was disproven by using a bake plane with a higher polygon count. Regardless of the poly count, the issue persists.

I figured out how you can easily recreate this issue. Just import a simple primitive plane twice and reproject displacement from one plane to another.
In theory the normalized displacement map should be completely flat since there is no height difference. But as you will probably notice, it's not and it will show almost the same grid I have in all our scans."

1. Open the project without linking the images
2. Select model "Texxary_ConcreteFloorGlossy_A_Bakeplane" and duplicate this model via SCENE 3D TOOLS - Mesh Model - Duplicate model.
3. In the SCENE 3D TOOLS - Mesh Model open the Texture Reprojection tool and use the following settings:
   [Image Removed]
4. Check the created displacement map "Displacement Layer 2".

Expected result: Since the projection is from one plane to another identical one, I would expect the displacement map to be completely flat. 

Actual result: Displacement map shows square and triangular patterns (see screenshot)