Transaction not yet indexed

ymf1Ff2vQKS1R1hAiZnqx8VyW9wJDSkG3MPSU2eUt9vUS21nkv7Ga6CA7YAayyzzegRvFgc8LY2nYKkSQDz2EHZ

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