Transaction not yet indexed

2688YxDef5eeLicx8GFfKJbfu9NbbzFU7GsRuLDS7wdAmzDqk9t2wFNf7s5Lb2S5jyG3QKDLTSFWz9eUE4dLgFmD

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.