Transaction not yet indexed

1aMkmb2zfRwAhpo3ZC8tFyc35jW5cPB8iECGS9argZhyFdLKZU6RSYRvFJoSNb1dYFJQZRWYkpWhmJ4mwUQ1kd4

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