Transaction not yet indexed

MkKUtB2AsNYcZ2ScHy51nDZSWNS6AqAt8W7uUECh1MDAvguw5qVxuTpHZ6qqPCSpzK59FP6cGCixrqSh1MYRuCA

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