Transaction not yet indexed

1S91bwUgc9kWCev2PR6ATUD2TLztpxj42V1112oRpopNnkB5PVBhkARrki5bcnsuNiGPSSWG7SZMt3Yfv6eSrt4

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