Transaction not yet indexed

ymtUoZXPQqcDN3hk8bojSCKuBfMixeVvWEi6jVZqhCP7SgC3vzyJW3Cy3HvpYcqiJW21ChKjY4BQMFq28FEE8Py

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