Transaction not yet indexed

21d7FzDkTSFySYj2DymHBcq2gFpYzp8So5fkRfGXaNDaT4mTTvkTwHaNTW7eNDkWaBmQ4nXgVtHdyWCwK4akLHk2

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