Transaction not yet indexed

Gu21yMPPqFytneD5HMQsCMnUrhP2tbfdMLMrVVngAS2nkvbpC5LcxB4WWzjLRNp5G87A3Y8LvmRQYSaEMdAigRZ

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