Transaction not yet indexed

21U52YzsFDY8mWkqZUE1MNexSzZzLuRqyPYPsMWFkEw1bbr7uv5dF5iaSeYjyyQsgTmGFy6xeWUEVmd7o2EdMe5n

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