Attempting to make some grass covers only the problem is the moment I cut a grass block with the saw the resulting bits turn white, both in inventory and when placed in the world.

Is this something fixable?

Hm... might be fixable, but would require some changes to MCMP i think. I'll look into it when i get some spare time.

Looks like @amadornes already implemented the needed stuff in MCMP but it's not in the latest release build.

amadornes/MCMultiPart@5c906bc

Hopefully it will allow me to fix color for grass and some other blocks when it's released.

Also is happening with Forestry leaves. Not sure if you want to include these in there anyway, but turns them all white as well.

Yeah it will be a problem for any block that has variable hue. Without that change in MCMP there is no way to pass the color to the rendering system so it defaults to white/gray.

I'm hoping to push out 2.0.0 in the next couple of weeks and that's one of the biggest features it includes. So soon :)

Should be fixed in next build. Requires MCMP >= 1.3.

Yep! 2.0.0 will come later on with all the new big features and changes. I didn't think it was worth making everyone wait :P