Black trees on drift servers

Anyone know how to remove the black part of the trees. Ive seen many people say its the map but friends have no black and when i ask them we couldnt figure out why. Anyone have and ideas?

Here is what it looks like: https://gyazo.com/d0d789f7ce0cbb1b146200a4940eef49

It seems MSAA causes alpha testing on maps using 2D trees to be broken.