2 of the items in crafting menu show:
Unknown key: "entity-name.duct-end-point-intake" (Recipe)
Unknown key: "entity-name.duct-end-point-outtake" (Recipe)
The blue text under them show: Fluid Must Flow > Omnicompression
So i'm not sure if the other mod has anything to do with it, all the other ducts tooltips are showing fine.
