Transaction not yet indexed

mpcucEd6ipSQa2YwR8ST9f3rFGFhsFZJYcv2xVcH7iKDP2JrqNvu91a7fgnRxQ7T6i1ZWbd6HUFWNbyVnB2fDg6

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