This mod doesn't seem to work with leaf blocks, when passable foliage is installed that gives them zero collision. I don't know if this is an issue on this side or the other mod.

Similar issue as the Bewitchment thick brambles, they are a solid block unless you crouch then you can sneak through them. Very cool block but it does not let you swing through them because of collision I guess.

That is because it isn't truly 'zero collision', Minecraft doesn't see it like that.

I'll leave this open, as I may make explicit compatibility.