Transaction not yet indexed

21UWsNa4SdDPK9yGLCZU5shjivdD3rHDCkxdMSAAmUsbdsroQfMTpa7BHtgqrvTJqfYkGCTiyUY7UFgPwsqaGCaS

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