Transaction not yet indexed

XEf5aNkA4zvrctR9BAmYnewuUtPZTRTZk66udacWcxHdLLiUChC6ctSfL5M5EN1XXe57H9jMyvGD2ZTwUTeLKn6

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