Transaction not yet indexed

21CbU8SFWrtsfYiGj7nLfdRucUYPJd1ByPhU7y39ZxwmJ23BDf3n2J6u6G7AiCSxc41fLZen4F6NF6KKsFahLwg4

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