Transaction not yet indexed

21MM16LJFQNMnXjyeKKdwDHHSKeaMChgNbCMoqVaEE7yMiHiCPKHxrebRA29jyHdHM3gVz1bBs8tkK2ZYedeiKVh

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