Transaction not yet indexed

28Z21zeKYov7WrhSMcnTmU3zcGeTV5GkUNBawS2vDZRfyANqM9dyZYXJpVmcQiGyw8q1rgCGuSR8LcDcgkwnKQ1j

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