Transaction not yet indexed

MNk2QpFGSi5wZVY8qDPavyJxX2kv3bJpLfDuSL4xy74DmVDyWaBLVDPPxAdjbB9xSFJCFfSpXur41TZzNXNfuup

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