modded blockstates in shaders

I was told that blockstates on things like tall grass are shader engine specific
ref: https://github.com/ComplementaryDevelopment/ComplementaryReimagined/issues/152#issuecomment-2453071017

I inspected my blocks.properties and the blockstaes ingame, all the ones that I added follow the half upper lower convention

ex /setblock ~ ~ ~ biomesoplenty:tall_white_lavender[half=upper]

my other attempts are documented on the github link.

I am not sure if this is a bug, or human error or lack of knowledge
GitHub
Greetings, I am on unbound r5.3 and attempt to add "tall grass like blocks" to the block.properties from various mods, like BiomesOPlenty, Oh the biomes we have gone, Regions Unexplored, ...
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