We are running a PaperMC 1.21 server and I've created a datapack that lets me craft the sherds. Upon testing, I found that flow armor trim could not be given to the player: /give <player> minecraft:flow_armor_trim_smithing_template. In the chat it says Error: Unknown item name: minecraft:flow_armor_trim_smiting_template.  I can disconnect from the server and enter a vanilla MC world and issue the same command and I get the smithing template.
			
			- Version Output
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			This server is running Paper version 1.21-77-master@2cd8c46 (2024-07-15T21:42:00Z) (Implementing API version 1.21-R0.1-SNAPSHOT)
You are 50 version(s) behind
Download the new version at: https://papermc.io/downloads/paper