[B136 Dev3] Exception happens when testing "Fractal" block - Invalid output index: 2

Error detail:
Exception in backtest: Invalid output index: 2 in block Fractal
Exception in backtest: Invalid output index: 5 in block Fractal
  
What I did:
Just run "Bears Power.cfx"


Error Log:
22:14:14.479 [Blocking computeThread common #6 - Builder_0-Generation 1.14.115] DEBUG BacktestDataFeed - SEND TOOK: 2776 ms, ticks: 22957460
22:14:14.483 [Blocking computeThread common #13 - Builder_0-Generation 1.14.118] DEBUG BacktestDataFeed - SEND TOOK: 2522 ms, ticks: 22957460
22:14:14.537 [Blocking computeThread common #6 - Builder_0-Generation 1.14.115] DEBUG BacktestEngine - Backtest finished in : 2777 ms.
22:14:14.537 [Blocking computeThread common #6 - Builder_0-Generation 1.14.115] DEBUG BacktestEngine - Stats computation finished in : 58 ms.
22:14:14.538 [Blocking computeThread common #6 - Builder_0-Generation 1.14.115] DEBUG BacktestRunner - Fitness computed to: 0.7440585022527505
22:14:14.538 [Blocking computeThread common #6] DEBUG c.s.t.project.ProgressEngine - Build strategies : Strategy 1.14.115
   - Main test - dismissed: Global filter:Profit factor[Main data] (1.13) > 1.3in 2.84 s.
22:14:14.538 [Blocking computeThread common #6] DEBUG c.s.g.c.p.MultithreadComputePerformer - Job Builder_0-Generation 1.14.115(371514_Builder_0) finished. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
22:14:14.538 [Blocking computeThread common #6] DEBUG c.s.g.c.p.MultithreadComputePerformer - Trying to execute job. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
22:14:14.538 [Blocking computeThread common #6] DEBUG c.s.g.c.p.MultithreadComputePerformer - Running job: Builder_0-Generation 1.14.133(371514_Builder_0). Blocking: true
22:14:14.538 [Blocking computeThread common #6 - Builder_0-Generation 1.14.133] DEBUG BacktestEvaluator - --- Job Strategy 1.14.133 started
22:14:14.538 [Blocking computeThread common #6 - Builder_0-Generation 1.14.133] DEBUG BacktestRunner - Backtest runner Strategy 1.14.133 started
22:14:14.544 [Blocking computeThread common #6] DEBUG c.s.t.project.ProgressEngine - Build strategies : Strategy 1.14.133
   - Exception in backtest: Invalid output index: 2 in block Fractal - in 0.01 s.
22:14:14.544 [Blocking computeThread common #6] DEBUG c.s.g.c.p.MultithreadComputePerformer - Job Builder_0-Generation 1.14.133(371514_Builder_0) finished. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
22:14:14.544 [Blocking computeThread common #6] DEBUG c.s.g.c.p.MultithreadComputePerformer - Trying to execute job. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
22:14:14.544 [Blocking computeThread common #6] DEBUG c.s.g.c.p.MultithreadComputePerformer - Running job: Builder_0-Generation 1.14.134(371514_Builder_0). Blocking: true
22:14:14.544 [Blocking computeThread common #6 - Builder_0-Generation 1.14.134] DEBUG BacktestEvaluator - --- Job Strategy 1.14.134 started
22:14:14.544 [Blocking computeThread common #6 - Builder_0-Generation 1.14.134] DEBUG BacktestRunner - Backtest runner Strategy 1.14.134 started
2


Error log 2:

08:14:36.673 [Blocking computeThread common #2 - Builder_3-Generation 4.6.161] DEBUG BacktestEngine - Backtest finished in : 3889 ms.
08:14:36.673 [Blocking computeThread common #2 - Builder_3-Generation 4.6.161] DEBUG BacktestEngine - Stats computation finished in : 65 ms.
08:14:36.678 [Blocking computeThread common #2 - Builder_3-Generation 4.6.161] DEBUG BacktestRunner - Fitness computed to: 0.2419354849176154
08:14:36.678 [Blocking computeThread common #2] DEBUG c.s.t.project.ProgressEngine - Build strategies : Strategy 4.6.161
   - Main test - dismissed: Global filter:Profit factor[Main data] (0.98) > 1.3in 3.96 s.
08:14:36.678 [Blocking computeThread common #2] DEBUG c.s.g.c.p.MultithreadComputePerformer - Job Builder_3-Generation 4.6.161(6ac6f1_Builder_3) finished. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
08:14:36.678 [Blocking computeThread common #2] DEBUG c.s.g.c.p.MultithreadComputePerformer - Trying to execute job. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
08:14:36.678 [Blocking computeThread common #2] DEBUG c.s.g.c.p.MultithreadComputePerformer - Running job: Builder_3-Generation 4.6.181(6ac6f1_Builder_3). Blocking: true
08:14:36.678 [Blocking computeThread common #2 - Builder_3-Generation 4.6.181] DEBUG BacktestEvaluator - --- Job Strategy 4.6.181 started
08:14:36.678 [Blocking computeThread common #2 - Builder_3-Generation 4.6.181] DEBUG BacktestRunner - Backtest runner Strategy 4.6.181 started
08:14:36.692 [Blocking computeThread common #2] DEBUG c.s.t.project.ProgressEngine - Build strategies : Strategy 4.6.181
   - Exception in backtest: Invalid output index: 5 in block Fractal - in 0.01 s.
08:14:36.692 [Blocking computeThread common #2] DEBUG c.s.g.c.p.MultithreadComputePerformer - Job Builder_3-Generation 4.6.181(6ac6f1_Builder_3) finished. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
08:14:36.692 [Blocking computeThread common #2] DEBUG c.s.g.c.p.MultithreadComputePerformer - Trying to execute job. Running blocking jobs: 14, non-blocking tasks: 4. Available cores:15, Waiting tasks:0
08:14:36.692 [Blocking computeThread common #2] DEBUG c.s.g.c.p.MultithreadComputePerformer - Running job: Builder_3-Generation 4.6.182(6ac6f1_Builder_3). Blocking: true
08:14:36.692 [Blocking computeThread common #2 - Builder_3-Generation 4.6.182] DEBUG BacktestEvaluator - --- Job Strategy 4.6.182 started
08:14:36.692 [Blocking computeThread common #2 - Builder_3-Generation 4.6.182] DEBUG BacktestRunner - Backtest runner St



Please check https://roadmap.strategyquant.com/tasks/sq4_9217 also.
There are similar errors.
1: Invalid output index: 2 in block MTKeltnerChannel
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