Transaction not yet indexed

5b12TafFnK5zrGBeWBCCGNGomEJQUttxq1hxcbmtA1qHfzrVBqWuUCjz2fWgAVyHZNnnFCPSJjcxETDZaV2z5uia

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