Virtual texture construction loses RGB color data

[floxay]

I suspect it's an issue with how the individual tiles are drawn onto the canvas, or something else, but Skia(Sharp) related.

Example asset: Game: The First Descendant Path: M1/Content/Characters/PC/MESH/004/A/Skel/SKIN/VAR/HEAD/Material/000/Texture/PC_004_A0101_Head_000_P.uasset

Current RGBA data (extracted texture):

Current RGB data (alpha disabled):

Expected RGB data (alpha disabled):