Just as the title describes. The mod loads fine, but all the factory blocks appear to be absent from JEI or creative entirely. I can only place them via setblock commands.
MC 1.20.1
FML 47.2.18
Chisel Reborn 1.8.0
Factory Blocks 1.3.1
JEI 15.19.5.99


below are debug and latest logs to provide extra info. I have no clue why this does not work, but initially this was tested on JEI 15.20.0.105, and later downgraded, result being the same.
debug.log
latest.log

Update - it appears that i need to craft the base block first with stone and iron then use a chisel to transform it. This is definitely one of the more dumb moments i've had in quite some time. closing.