Transaction not yet indexed

MNKw6YFsE9yfPVWiFoAxrWf21KsHbtt4Uxdozjsp2MDPLvX1WpD3nKL8s2a5JaePSYfhdB9DEb7ScBPsE7WPXt3

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