Transaction not yet indexed

MD6xoJ6ZiU4cpfukPofT2EWY3aeR8D8vKzPtfYDJTEArfpQUpPW21kPASaiLFfrcKXEZfk5eudqBpJRoNaufAMt

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