Transaction not yet indexed

5u19xk4FS7vfLbtC3KJhf5yx5AWyXdLFQvhf213YzzPMqtHAcEcbREXMZ6o5sjCT4JGTf8RPt6XfsmcbvSuSpN54

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