Transaction not yet indexed

21U6fAYCBaeiaM3347tPUeD33PConZuYXTMcyvtC6iW2yVHk4X9dWUfYQJ19HzMdqerKBs3YKAMpCPTHBoqcD8RC

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