Transaction not yet indexed

ahMecUH8zzJPGb3tpCjiHx51d11udsDXeWAShSz24b1vYu56ufEd2aPxjqx8kgwvSjumm2ZmFWJULeQdkCL2oGt

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