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GATK4_MERGEVCFS not sorted #214

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@yannic-chen

Description of the bug

Hello,

I want to call variants from RNA-seq data that I was provided in BAM format. I have already mark the duplicates, fixmate, fixed readgroups, fixed header information to work with the refseq format and sorted the reads. ValidateSamFile doesnt return any issues. This was able to solve all errors up until the current step: GATK4_MERGEVCFS.

I get the following error: java.lang.IllegalStateException: The elements of the input Iterators are not sorted according to the comparator htsjdk.variant.variantcontext.VariantContextComparator

The full error log:
nextflow.log

Command used and terminal output

nextflow run nf-core/rnavar -profile docker --input rnavar_test.csv --genome GRCh38 --skip_baserecalibration true --outdir rnavar -w /mnt/data/Till/work/

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Linux VM

(I run sarek on this same VM without problems)

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