Hi folks, not a bug, just a tweak for the included shader pack.
A number of months ago when I started a session with my group, I noticed that there was no support for the modded foliage in the shader pack. So, I manually compiled every leaf, flower, sapling, vine, and other blocks into the block.properties file so that everything shades and sways properly. It should also resolve some backface issues with Chipped glass.
It can be placed in shaderpacks > ComplementaryReimagined > shaders and should update on shader reload.

As the shader pack seems to be acquired automatically I am unsure if this can be incorporated into the modpack. Still, some people may find it useful, so I am sharing it here.

Make sure to remove the .txt extension from the filename.
block.properties.txt

@Kevin-Marsh booping this one to you, this might be interesting, or not, idk