Transaction not yet indexed

21fUk7FEK6NK7qqRAfkML5a2cjqJsEnv3ccCuiQmmXfaxnsXqny4gpPmZBzAi4ZX5ZB3dCvWXGmMSDninsUGt4Ho

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