Transaction not yet indexed

21ppCmYxM4LFrfmqnJMhhuDvfozCPNNjR4Fyz27AtQExM7Ly2bXyKyRzQ3MdMSRRMsSyDM857oeUgnhVMx8xeKmm

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