Transaction not yet indexed

2Sm15JCLRqynjjK6oRdfG6nnGEg9wBFrjMzM3Lgrquw4Qq9p47zt2fGQ2Mdgmzk4CvKbPoxZwUU2d9WX8yKMMxd1

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