Transaction not yet indexed

Mb8Etf3txC2H7uEPwj2CY4aff9V98fUQSw3ExmJkQk2d58GxMs7bjAjcK6Uw6SZDbszwpPuqHFjdarwDSmDUw8Y

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