Because data packs operate per world rather than globally across all saves, a missing crafting output usually means the pack is not enabled in your current survival world or needs a reload.
Checking Crafting Inputs First
Before checking world commands, confirm your ingredients in the 2×2 inventory grid or 3×3 crafting table:
1. Verify the block is Glazed Terracotta (smelted, patterned terracotta) rather than plain hardened terracotta or stained terracotta.
2. Pair it with a different vanilla dye color than the block already has so you can clearly see the recolored output appear.
3. Make sure no extra unrelated items are sitting in the remaining crafting slots.
Verifying and Reloading the Data Pack
The pack runs in vanilla survival without external mod loaders or extra dependencies. If valid ingredients still produce no output, check whether the world has loaded the pack:
1. Open chat with cheats or operator permissions enabled and run /datapack list to see active and available packs in the current world.
2. If the pack appears under available rather than enabled, enable it with /datapack enable followed by its listed pack name.
3. Run /reload in chat—or exit and reopen the world if commands are disabled—to refresh all custom crafting recipes, then test your 2×2 crafting grid again.