Transaction not yet indexed

iSMkxvCiZGwbCNjgfdt3Hum4mQhmDNVFPZmL9s3gK2DWrfdutoN6fREJ6ewJZpzSCxSikh1vKBiqfXv3gSrRetJ

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