Transaction not yet indexed

21Apmn473CwCCJ4jdRQ9NLHWWLSeqHPnkMWjJWLFhfLogQpn8W5RC193T4BRCBpbGKLEjhY3mgfG15LhkX9vLmj6

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