java.lang.IndexOutOfBoundsException: Must have 0 <= idx <= 31: -1

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java.lang.IndexOutOfBoundsException: Must have 0 <= idx <= 31: -1
at water.util.Utils$IcedBitSet.set(Utils.java:886)
at hex.gbm.DBinomHistogram.scoreMSE(DBinomHistogram.java:166)
at hex.drf.DRF$DRFDecidedNode.bestCol(DRF.java:606)
at hex.gbm.DTree$DecidedNode.(DTree.java:386)
at hex.drf.DRF$DRFDecidedNode.(DRF.java:595)
at hex.drf.DRF.makeDecided(DRF.java:588)
at hex.gbm.SharedTreeModelBuilder$ScoreBuildOneTree.onCompletion(SharedTreeModelBuilder.java:677)
at jsr166y.CountedCompleter.tryComplete(CountedCompleter.java:386)
at water.MRTask2.compute2(MRTask2.java:426)
at water.H2O$H2OCountedCompleter.compute(H2O.java:647)
at jsr166y.CountedCompleter.exec(CountedCompleter.java:429)
at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)
at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)

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