Describe the bug
There is no way to become osmium ore piece or osmium ore chunk. There is no Item that named like this.

Expected behavior
I cant become Osmium. I can becom it only from Osmium Bees.
Screenshots

I have my Minecraft and The Server restarted.

Looking at OPs picture, the two missing are coming from KubeJS, so its possible it wasnt loaded?

You should be able to get the Osmium Ore Piece from using Gravel in a Sieve with a Diamond, Emerald, or Netherite Mesh.
I'm using Current version of Mod Pack - 1.1.8

potentially something wrong with your instance (some of the kube files failed to download potentially, not sure) but im also looking right at osmium pieces in jei >closing