Transaction not yet indexed

1MCgUN89DLB1NwonEkJdvMEXUJ1GHaZFZ1GsEzMqeP7B1ESxv4VPgsza4dNc7gBHTjW9uGEKGoYVNvwTxu4m7NY

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