Transaction not yet indexed

5Sm6LUe87mRmsZuU4AigqFeTBzTqn2yMV8eYE9RfF3nNKDcEjqkbcWPBk9HSbxGrwMUGQqbvQf2MXeM7Fdnn2ZG6

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