Transaction not yet indexed

21M4tMjMRHJZw7bfUFrGPhma7ihbkBgcimKuJshvptWjUeYqBkcVpSVQYuh5RXnsqQ6nGucCFK5N4HWcTYgyQ5nG

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