Transaction not yet indexed

21X8dMkdbYKRTf5GKU5XQC15oBuqGkMj2PtNbCgnDomGEACTpHiULpJnffaMawwTetP9QDdyqo5EkfsAbb8seN2G

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