Transaction not yet indexed

Ex6HeKwP17ZhNBnDgvkCDF2zrXJkKd9bfe42yJGfvatv5WkHHdRYrc1wDnodgED7rS1gu11pgsDXJwEEXFj59q9

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