Transaction not yet indexed

2a21UM4keBYdFAmcWfCvTPvoSmYuL5GoZP4f4meZv7qyFrpae2mwm51r1JsWcaMWLEHkQRqsh9gbsUiwKco1K3Bk

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