Quality holmium ore finally yields you more.
Small changes concerning balance, gameplay, or graphics.
Things related to oil and other fluids.
Furnaces, assembling machines, production chains.
Play it your way.
Getting the error message "Blueprint with Holmium Chemical Plant cannot be flipped"
This doesn't make sense why it should block the flipping, as it only is ever allowed to output holmium on one side and taking water in on the other.
Not quite sure which of the prototype properties is causing it to be blocked actually.