Error adding read groups to golden bam file

[afzm]

After sorting the golden bam I encounter this message:

Exception in thread "main" htsjdk.samtools.SAMFormatException: SAM validation error: WARNING: Read name A.tha_01-1-35477/2, No M or N operator between pair of I operators in CIGAR at htsjdk.samtools.SAMUtils.processValidationErrors(SAMUtils.java:454) at htsjdk.samtools.BAMRecord.getCigar(BAMRecord.java:253) at htsjdk.samtools.SAMRecord.getAlignmentEnd(SAMRecord.java:606) at htsjdk.samtools.SAMRecord.computeIndexingBin(SAMRecord.java:1575) at htsjdk.samtools.SAMRecord.isValid(SAMRecord.java:2087) at htsjdk.samtools.BAMFileReader$BAMFileIterator.advance(BAMFileReader.java:811) at htsjdk.samtools.BAMFileReader$BAMFileIterator.next(BAMFileReader.java:797) at htsjdk.samtools.BAMFileReader$BAMFileIterator.next(BAMFileReader.java:765) at htsjdk.samtools.SamReader$AssertingIterator.next(SamReader.java:576) at htsjdk.samtools.SamReader$AssertingIterator.next(SamReader.java:548) at picard.sam.AddOrReplaceReadGroups.doWork(AddOrReplaceReadGroups.java:182) at picard.cmdline.CommandLineProgram.instanceMain(CommandLineProgram.java:282) at picard.cmdline.PicardCommandLine.instanceMain(PicardCommandLine.java:103) at picard.cmdline.PicardCommandLine.main(PicardCommandLine.java:113)
This is the read:

A.tha_01-1-35477/2 147 1 24491 70 85M2I1D6I57M = 24142 -499 AAAATTGGTTACCTATTGGTTTTGGTTGGTTGATTTATCTTACGTTATCAGCAAGCAGAAGTGATCCGTAATCAAACTTGTTTTCAATTGGACATTATTGTCCGAGGGGCGGTGAGATGGGACAGGACTTTTGGGATTCTCGAAGGTGGC 06FFFE>FC>F?FF?@FFFF9GAEGGGEGGGGD5FD)5FFGFGEFE@DGGFG3@FAGFGFGA>GG3GGGEFBFGG4G><;GG>G:F&GGGGBGGE2GFF6F9*B85GE6?FCEEBFG@GGGFE@3DCDGG;E<;FEDG:GEFA-3GG<FD

Also:

Exception in thread "main" htsjdk.samtools.SAMFormatException: SAM validation error: ERROR: Record 9111, Read name A.tha_02-1-6417/1, CIGAR covers 148 bases but the sequence is 150 read bases at htsjdk.samtools.SAMUtils.processValidationErrors(SAMUtils.java:454) at htsjdk.samtools.BAMFileReader$BAMFileIterator.advance(BAMFileReader.java:812) at htsjdk.samtools.BAMFileReader$BAMFileIterator.next(BAMFileReader.java:797) at htsjdk.samtools.BAMFileReader$BAMFileIterator.next(BAMFileReader.java:765) at htsjdk.samtools.SamReader$AssertingIterator.next(SamReader.java:576) at htsjdk.samtools.SamReader$AssertingIterator.next(SamReader.java:548) at picard.sam.AddOrReplaceReadGroups.doWork(AddOrReplaceReadGroups.java:182) at picard.cmdline.CommandLineProgram.instanceMain(CommandLineProgram.java:282) at picard.cmdline.PicardCommandLine.instanceMain(PicardCommandLine.java:103) at picard.cmdline.PicardCommandLine.main(PicardCommandLine.java:113)