Transaction not yet indexed

UMMambhe9wUDZtRCW37Uke3YpDtpQTmhRJqGXk4mLPxdEFKuvRaACD441bdq4avJMDjMyRGfCYgsNCXFeQG4BRb

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