Transaction not yet indexed

Df66pf9qDo4HgJ5z3SruV7k15nXeZfT1MXsaahoQ3sdpJdn5RQh6er3FpCD4dvwQfb3cy2jkvjDosC4HjhhdiMP

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