Post-merge fixes.

src/tools/training_data_generator.cpp

@@ -257,7 +257,7 @@ namespace Stockfish::Tools
 
         StateInfo si;
 
-        auto& prng = prngs[th.thread_idx()];
+        auto& prng = prngs[th.id()];
 
         // end flag
         bool quit = false;
@@ -693,7 +693,7 @@ namespace Stockfish::Tools
             maybe_report(iter + 1);
 
             // Write out one sfen.
-            sfen_writer.write(th.thread_idx(), sfen);
+            sfen_writer.write(th.id(), sfen);
         }
 
         return false;