Transaction not yet indexed

ta28Sw9W9q7zDcE5x3cHzfE2zdgcnQ1PCRNURDerRGpiJW7g58h7zTDfc6BPFwJSUCpryUDkohgvBdNSf3Y4eF7

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