Fossil Configured Feature acting weird

I'm trying to use the Fossil Configured Feature using the gravity processor work around (to prevent it from being underground) and for some reason some parts of my structure randomly get cut? also other times it randomly adds a new end stone brick wall? no idea why is this feature being so erratic I'm just trying to mimick Chorus Plant gen using NBT structures, something I did notice is that 99% of the time it occurs where the end stone bricks connect to each other (the corners ig???) here are my placed feature, configured feature, and block tags: