[abenedik]

I have checked the ply file that you have sent and I see that the file uses per-vertex colors - this can be seen from the first few lines of the ply file:

ply
format ascii 1.0
comment Created by Blender 2.75 (sub 0) - www.blender.org, source file: ''
element vertex 152358
property float x
property float y
property float z
property float nx
property float ny
property float nz
property uchar red
property uchar green
property uchar blue
element face 50830
property list uchar uint vertex_indices
end_header
-136.351532 277.688599 158.578323 -0.750302 0.219606 0.623555 46 41 62
-137.263077 296.570068 150.831741 -0.750302 0.219606 0.623555 57 52 71
...


Per-vertex colors are not supported in WPF. There is nothing I can do in Ab3d.PowerToys to support that.

Please check if you can export the model with using textures instead of per-vertex colors.