I am using the PureBDcraft texture pack for Java Minecraft 1.19.4 and having some issues with some custom models. Attached are 2, what I believe are, in-depth pdf's that show the issues going on.

SubMissModelParts_ON.pdf
SubMissModelParts_OFF.pdf

all of the issues listed in the pdf appear to be resolved in recent versions, and pureBDcraft entities appear to be working perfectly with EMF!