Transaction not yet indexed

421NtAzdKY7RHkYjbtdR6XiapSHUbqPg7ZQ7RaEBfuJ5Ek6Hf497gPRGgzzHHrJyEViNUARsVRLS95wKpTGhFLL5

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