Transaction not yet indexed

RMkPpVMWEF7qaR1YzAAFvL6snFgCCJWZ2td6mKEtzHTZYp6voXkRNXx8Lb2MiwNmBKcMJAP4vXxhLwo8sKJ2m2k

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