How to resolve Z-fighting in ArcGIS Pro

[Elijah]

Each time I offset this raster layer to the level of the multipatch, the area of the raster that intersects with the multipatch gets swallowed up. But I need the raster to show at all levels. The raster is a contamination surface within a lithology, so I want to show this contamination at different depths  See image A (raster showing well when not in contact with multipatch layer) and image B (raster section swallowed up when in contact with multipatch).

I have used tweaked depth priority tool but it's not working yet. Please, what else can I do?