had same issues, first i would suggest checking to see if the files on your machine are good, load in single player and see if you can train it if thats good then you mod files on the server need to be pulled and manually installed. We had the same issue and it worked for our server.

i cant craft the feeding trough either, i have already deleted the mod an let it reinstall 2, im playing sp

same issue on a dedicated server, all other elements of this mod work fine except the powered feeding trough, which nobody can learn. Deleted, reinstalled, no luck.

Just came on looking if anyone else is having this issue, The Server is mine and only one other player on it. I reload all MOD's daily. So it has had a fresh update. I can learn it, but can not craft it...

Tried building a new Super FABracator, the blueprint is in the new one, and not the old one... Hope that helps! :)

been playing on a buddies server and it seems that aku shima conflicts with being able to craft the new vanilla gear and items. Things like fur armor can be learned and not show up in the smithy while things like the slanted glass wall/ceiling and most of the rwt building like the stairs cannot be learned at all. We cannot even learn the powered feeding trough to see if it works XD

as a note we are also running a few other mods:
Aku Shima being first in the load order
Dino Overhaul
Better Beacons
Vault Collection v3.5
K9 Custom Stacks
Death Find

The only engram my server is having issues with is the powered feeding trough. All other engrams, vanilla and mod alike are learnable and craftable. The powered feeding trough engram isn't learnable.