Transaction not yet indexed

21Lkf3ZtecwvXsu2uT2EYaGPFBNo4chCP4aiWdcd8zm7ZoZ3ViF65DNBa63cwuPzcsxAugsQkM8c9PWmkYvzyXK5

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