Maybe the threshold of 75% could be overriden in case the absolute number of exeptions is low ...
23:41:26.519 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Load Builder Config : Task finished
23:41:26.520 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Build strategies : Initializing backtest data...
23:41:26.520 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Build strategies : Loading backtest data for Main test - USATECHIDXUSD / H1
23:41:26.520 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Build strategies : Data loaded from memory
23:41:26.534 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Build strategies : All backtest data prepared
23:41:26.534 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Build strategies : -----------------------------
23:41:26.606 [Blocking computeThread common #23] ERROR GPGenerationalEngine - There was exception evaluating candidate: null
23:41:26.606 [Blocking computeThread common #12] ERROR GPGenerationalEngine - There was exception evaluating candidate: null
23:41:26.608 [Blocking computeThread common #8] ERROR GPGenerationalEngine - There was exception evaluating candidate: null
23:41:26.609 [Blocking computeThread common #8] INFO c.s.t.project.ProgressEngine - Build strategies : GRID: Stopping build, job failures (exceptions) exceeded 70%!
23:41:26.609 [Blocking computeThread common #8] INFO c.s.t.project.ProgressEngine - Build strategies : Project stopped
23:41:26.733 [Nonblocking computeThread - 139 - Builder_0] INFO c.s.t.project.ProgressEngine - Build strategies : Finished in 0s
23:41:27.990 [Thread-5737812] INFO c.s.t.project.ProgressEngine - Project finished
Status changed from New to Refused