ensembl javaindexoutofbounds Exception

[bioinfo-dirty-jobs]

I have run this command

/opt/bcbio.variation.recall/bcbio-variation-recall ensemble  -c 1 -n 1 out.fg.gz  /home/maurizio/database/hg19_primary.fa  mutect2/436.mutect2.vcf.gz 436.varscan.all.Somatic.vcf.gz
2018-02-01 15:42:42 Tardis ERROR [bcbio.variation.recall.main] - 
java.lang.IndexOutOfBoundsException: 
                            clojure.lang.RT.nthFrom             RT.java:  871
                                clojure.lang.RT.nth             RT.java:  840
   bcbio.variation.ensemble.intersect/get-rep-vc/fn       intersect.clj:   49
                               clojure.core/comp/fn            core.clj: 2438
                                clojure.core/map/fn            core.clj: 2624
                          clojure.lang.LazySeq.sval        LazySeq.java:   40
                           clojure.lang.LazySeq.seq        LazySeq.java:   49
                                clojure.lang.RT.seq             RT.java:  507
                                   clojure.core/seq            core.clj:  137
                                clojure.core/map/fn            core.clj: 2616
                          clojure.lang.LazySeq.sval        LazySeq.java:   40
                           clojure.lang.LazySeq.seq        LazySeq.java:   49
                             clojure.lang.Cons.next           Cons.java:   39
                               clojure.lang.RT.next             RT.java:  674
                                  clojure.core/next            core.clj:   64
bcbio.variation.variantcontext/write-vcf-w-template  variantcontext.clj:  189
                         clojure.lang.RestFn.invoke         RestFn.java:  573
bcbio.variation.ensemble.intersect/ensemble-vcfs/fn       intersect.clj:   88
   bcbio.variation.ensemble.intersect/ensemble-vcfs       intersect.clj:   86
           bcbio.variation.ensemble.intersect/-main       intersect.clj:  140
                        clojure.lang.RestFn.applyTo         RestFn.java:  137
                                 clojure.core/apply            core.clj:  630
               bcbio.variation.recall.main/-main/fn            main.clj:   34
                  bcbio.variation.recall.main/-main            main.clj:   33
                        clojure.lang.RestFn.applyTo         RestFn.java:  137
                   bcbio.variation.recall.main.main                    :     
What is the meaning of this error?

[chapmanb]

This is in the same part of the code (looking up a correct ensemble variant representation) as #21 so following up there to keep the discussion in one place.