Transaction not yet indexed

21CKwp4iYDWbzevY6w12wjuX3GPnefs1p3dRgQSnjJaxQCouWV2RVuBNNWJLqTXzjLKuHsn6N2N4MHAvmE715ZNY

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