Transaction not yet indexed

421UYcWTT3J9R5CUs5aqsmspmYMnHKk3CK4UdVUtWL8NVBHGoTBVxWfQhGoGu2F82x1sRATLuwmR7sPGKmexRGMM

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