Transaction not yet indexed

53FB91YFSABFNpsuR4192jCVvdbGCWmd25hRYM2uRVyVk5cpKvSyPAPxP3kez48QUpzWGpCNto1bbS1n4uhJL5gT

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