Stack Trace, number format exception error

Hi, I have a number of bam files that I have downloaded from TCGA, for a number of them I keep getting the following error, both with mutect1 and mutect2 in GATK v3.7:

Any help would much appreciated. Thanks

##### ERROR ------------------------------------------------------------------------------------------
##### ERROR stack trace 
java.lang.NumberFormatException: For input string: "e1533 S"
        at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
        at java.lang.Integer.parseInt(Integer.java:492)
        at java.math.BigInteger.<init>(BigInteger.java:347)
        at net.sf.samtools.SAMSequenceRecord.isSameSequence(SAMSequenceRecord.java:133)
        at net.sf.samtools.util.SequenceUtil.assertSequenceListsEqual(SequenceUtil.java:102)
        at net.sf.samtools.util.SequenceUtil.assertSequenceDictionariesEqual(SequenceUtil.java:161)
        at net.sf.picard.sam.SamFileHeaderMerger.getSequenceDictionary(SamFileHeaderMerger.java:528)
        at net.sf.picard.sam.SamFileHeaderMerger.<init>(SamFileHeaderMerger.java:154)
        at org.broadinstitute.sting.gatk.datasources.reads.SAMDataSource$SAMReaders.<init>(SAMDataSource.java:885)
        at org.broadinstitute.sting.gatk.datasources.reads.SAMDataSource$SAMResourcePool.createNewResource(SAMDataSource.java:795)
        at org.broadinstitute.sting.gatk.datasources.reads.SAMDataSource$SAMResourcePool.getAvailableReaders(SAMDataSource.java:766)
        at org.broadinstitute.sting.gatk.datasources.reads.SAMDataSource.<init>(SAMDataSource.java:277)
        at org.broadinstitute.sting.gatk.GenomeAnalysisEngine.createReadsDataSource(GenomeAnalysisEngine.java:872)
        at org.broadinstitute.sting.gatk.GenomeAnalysisEngine.initializeDataSources(GenomeAnalysisEngine.java:761)
        at org.broadinstitute.sting.gatk.GenomeAnalysisEngine.execute(GenomeAnalysisEngine.java:284)
        at org.broadinstitute.sting.gatk.CommandLineExecutable.execute(CommandLineExecutable.java:121)
        at org.broadinstitute.sting.commandline.CommandLineProgram.start(CommandLineProgram.java:248)
        at org.broadinstitute.sting.commandline.CommandLineProgram.start(CommandLineProgram.java:155)
        at org.broadinstitute.sting.gatk.CommandLineGATK.main(CommandLineGATK.java:107)

Any help would much appreciated. Thanks