Bug with version 3.6 and jexl

I recently tried to use a GaTK command I previously used with GaTK 3.5, and I'm getting a jexl error.
I don't understand why. I've updated to java 1.8.0_77
java -Xmx${MEM} -jar ${gatk_dir}/GenomeAnalysisTK.jar \
-T VariantFiltration \
-R ${genome} \
-L ${CHROM} \
-V ${data_dir}/'14a_'${abb}'HapCaller_mergedCHRs_VARIANTS'${CHROM}'.vcf' \
-G_filter "DP < 10 " \
-G_filterName "LowCov" \
-G_filter "DP > 100 " \
-G_filterName "HighCov" \
-G_filter "GQ < 20 " \
-G_filterName "LowGQ" \
--clusterWindowSize 10 --clusterSize 3 \
--filterExpression "QD < 2.0 || FS > 60.0 || MQ < 40.0 || MQRankSum < -12.5 || ReadPosRankSum < -8.0 || SOR > 4.0 " \
--filterName "gatkHardFilter" \
--setFilteredGtToNocall \
-o ${data_dir}/'14b_newgatk_'${abb}'HapCaller_mergedCHRs_VARIANTS_hard_cluster_filterflag_DPGQmissing'${CHROM}'.vcf'

The error message:

ERROR --

ERROR stack trace

java.lang.IllegalArgumentException: Invalid JEXL expression detected for HighCov with message no message
at htsjdk.variant.variantcontext.JEXLMap.evaluateExpression(JEXLMap.java:136)
at htsjdk.variant.variantcontext.JEXLMap.get(JEXLMap.java:93)
at htsjdk.variant.variantcontext.JEXLMap.get(JEXLMap.java:22)
at htsjdk.variant.variantcontext.VariantContextUtils.match(VariantContextUtils.java:323)
at org.broadinstitute.gatk.tools.walkers.filters.VariantFiltration.filter(VariantFiltration.java:433)
at org.broadinstitute.gatk.tools.walkers.filters.VariantFiltration.map(VariantFiltration.java:349)
at org.broadinstitute.gatk.tools.walkers.filters.VariantFiltration.map(VariantFiltration.java:97)
at org.broadinstitute.gatk.engine.traversals.TraverseLociNano$TraverseLociMap.apply(TraverseLociNano.java:267)
at org.broadinstitute.gatk.engine.traversals.TraverseLociNano$TraverseLociMap.apply(TraverseLociNano.java:255)
at org.broadinstitute.gatk.utils.nanoScheduler.NanoScheduler.executeSingleThreaded(NanoScheduler.java:274)
at org.broadinstitute.gatk.utils.nanoScheduler.NanoScheduler.execute(NanoScheduler.java:245)
at org.broadinstitute.gatk.engine.traversals.TraverseLociNano.traverse(TraverseLociNano.java:144)
at org.broadinstitute.gatk.engine.traversals.TraverseLociNano.traverse(TraverseLociNano.java:92)
at org.broadinstitute.gatk.engine.traversals.TraverseLociNano.traverse(TraverseLociNano.java:48)
at org.broadinstitute.gatk.engine.executive.LinearMicroScheduler.execute(LinearMicroScheduler.java:99)
at org.broadinstitute.gatk.engine.GenomeAnalysisEngine.execute(GenomeAnalysisEngine.java:311)
at org.broadinstitute.gatk.engine.CommandLineExecutable.execute(CommandLineExecutable.java:113)
at org.broadinstitute.gatk.utils.commandline.CommandLineProgram.start(CommandLineProgram.java:255)
at org.broadinstitute.gatk.utils.commandline.CommandLineProgram.start(CommandLineProgram.java:157)
at org.broadinstitute.gatk.engine.CommandLineGATK.main(CommandLineGATK.java:108)

ERROR ------------------------------------------------------------------------------------------

ERROR A GATK RUNTIME ERROR has occurred (version 3.6-0-g89b7209):

ERROR

ERROR This might be a bug. Please check the documentation guide to see if this is a known problem.

ERROR If not, please post the error message, with stack trace, to the GATK forum.

ERROR Visit our website and forum for extensive documentation and answers to

ERROR commonly asked questions https://www.broadinstitute.org/gatk

ERROR

ERROR MESSAGE: Invalid JEXL expression detected for HighCov with message no message

ERROR ------------------------------------------------------------------------------------------