Transaction not yet indexed

ku1Mx3ErpZJKeDqH4zcEGNMXsdgqJwYEofGvasDNGnanXG5PrS6HJo8MswzAEYbW4nzdrdz8hbi4CdnUXHu7Pk6

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