Transaction not yet indexed

u21EwAZbLqbQzEk256VwGG7FDkshBD9e7ugfLXch8Q8NqFrhbcRJP1LwuUShpnnGA6d73pC8LbVML2C9hFYN1AA

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