Transaction not yet indexed

21UnbFAzLZm1c8UrbKuMdhZPvFXf6X6DL7JCxsAodB4aUG9pt8d8jCmgYdbkmWoaATbp9Qq4tw2N8ELRSLcdoS5L

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