Transaction not yet indexed

1mmo8ht5uHrATzrPkSY4vNaPs9WEgMCH5rCsqpmbNGoN5fP5Pds5WEXVNYrw1mYsdvqenvZpqCEVAss5Phc6ovJ

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