LOG READER - Error: "Failed to compare two elements in the array" during reading many or large of (4241419)

When user tried to read a backup and tlog with a size exceeded 8gb or more. It failed to read the entire backup file and it crashed upon exiting.

(from LiteSpeed.log)
3/27/2009 8:31:34 AM; Log Reader for SQL Server; ; Error; System.InvalidOperationException: Failed to compare two elements in the array. ---> System.NullReferenceException: Object reference not set to an instance of an object.         at Quest.LogReader.SqlServer.PL.LogReaderSQL.LogArea.CompareTo(LogArea other)         at System.Collections.Generic.GenericArraySortHelper`1.QuickSort[TValue](T[] keys, TValue[] values, Int32 left, Int32 right)         --- End of inner exception stack trace ---         at System.Collections.Generic.GenericArraySortHelper`1.QuickSort[TValue](T[] keys, TValue[] values, Int32 left, Int32 right)         at System.Collections.Generic.GenericArraySortHelper`1.Sort[TValue](T[] keys, TValue[] values, Int32 index, Int32 length, IComparer`1 comparer)         at System.Collections.Generic.ArraySortHelper`1.Sort(T[] items, Int32 index, Int32 length, IComparer`1 comparer)         at System.Array.Sort[T](T[] array, Int32 index, Int32 length, IComparer`1 comparer)         at System.Collections.Generic.List`1.Sort(Int32 index, Int32 count, IComparer`1 comparer)         at Quest.LogReader.SqlServer.PL.LogReaderSQL.testLogGaps(ICallbackHandler callback)         at Quest.LogReader.SqlServer.PL.LogReaderSQL.LoadBackup(BackupParameters parameters, ICallbackHandler callback)         at Quest.LogReader.SqlServer.UI.Wizards.LoadLogWizard.LogLoadStep.execute()