Transaction not yet indexed

215d921kV9uMTXL2Ch2pFjfaRfCCLZwSDVVRDyTrpYTUEMMw9RAxLxnpF1mFdQdfGhhYAdF7UmfFw2sDJRLo3j7v

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