Grass flipped on it's side

I am noticing that a few of the grass models are flipped on it's side when I import to UE4. Am I importing these with incorrect translations, or is this a mistake in the library itself? Also, I bought both the "tall grass" and "clumped grass" assets, and the models themselves have the same names, which I found a slightly counter intuitive. Both are just called "Var1_LOD0" and so on.