Transaction not yet indexed

21WtZVkQpTSCUk71zJLDPScM3fUN9SiNv5AH9HiyeVZK2thgzyT83fkD2kCpAA5fMdfRF1oHsLb6z9C4eZ7LCnM8

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