Transaction not yet indexed

1MYTwsdd7j7PoaARKeFhzqAXEdAgaJEBnzRLwFJSC89fB7mez13o1pRo54RGhKvrhybQ5hXXrZGE7eK4Ny7UYL6

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