I know this is over a month old, but I got to this place through story progression, followed what the notes gave me, and at that end (after the 16th button press) as I put the black shard into the machine, it doesn't work. I've been retrying this for a long time now, for the same result to happen.
Order tried :
Put Ore in furnace
Red, blue, green, red, red, take black shard out of the furnace, blue, purple, gold, green, red, green, red, blue, gold and finally purple.
I know there is a secret note, but I think it unrelated to the 'story riddle' as it contradicts the regular notes.
Any help would be appreciated.