Transaction not yet indexed

421S7mQhEVT5DvDLYtXDPzZvH5eKqSYCTjRLpkwiVdbQz6zX7zeCQYY5pwBSCVWAHkhzmqo7vkxQCSU7eAXVERVB

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