Transaction not yet indexed

MUE6n8gMahJYcPkJvggkWaiKBwThNutaiswpkGfZU6RNKT8GeVJNajxvDbfMRcMb2ynJAaDmfS7XEcrtDBwPde7

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