Fix missing ok in M601

Firmware/Marlin_main.cpp

@@ -7994,6 +7994,7 @@ Sigma_Exit:
         if (!isPrintPaused)
         {
             st_synchronize();
+            ClearToSend(); //send OK even before the command finishes executing because we want to make sure it is not skipped because of cmdqueue_pop_front();
             cmdqueue_pop_front(); //trick because we want skip this command (M601) after restore
             lcd_pause_print();
         }