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SplitNCigarReads error

I used SplitNCigarReads to split cigar, however I got this error:
April 11, 2019 11:29:29 PM CST] org.broadinstitute.hellbender.tools.walkers.rnaseq.SplitNCigarReads done. Elapsed time: 1.36 minutes.
java.lang.IllegalArgumentException: Cannot split this read (might be an empty section between Ns, for example 1N1D1N): 62M24353N33D12428N7D2M946N86M
at org.broadinstitute.hellbender.tools.walkers.rnaseq.SplitNCigarReads.splitReadBasedOnCigar(SplitNCigarReads.java:301)

I added "--refactor-cigar-string" and "--read-filter GoodCigarReadFilter" and tried again, still report this error.
I dont know how to deal with it, need I to remove this "bad" cigar alignment?


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