IAE: prevBuildResultKey and nextBuildResultKey cannot be null, either or both must be specified.

2013-11-19 04:35:11,087 INFO [http-bio-8085-exec-49] [AccessLogFilter] mhenderson POST http://jira-bamboo.internal.atlassian.com/build/admin/ajax/reorderBuild.action 1226465kb
2013-11-19 04:35:11,089 ERROR [http-bio-8085-exec-49] [ExceptionMappingInterceptor] prevBuildResultKey and nextBuildResultKey cannot be null, either or both must be specified.
java.lang.IllegalArgumentException: prevBuildResultKey and nextBuildResultKey cannot be null, either or both must be specified.
	at com.atlassian.bamboo.v2.build.queue.BuildQueueManagerImpl.reorderBuildInQueue(BuildQueueManagerImpl.java:357)
	at com.atlassian.bamboo.ww2.actions.build.admin.ReorderBuild.doExecute(ReorderBuild.java:45)
	at com.atlassian.bamboo.ww2.BambooActionSupport.execute(BambooActionSupport.java:1134)
	at sun.reflect.GeneratedMethodAccessor701.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)
	at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)
	at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor.validateWorkflow(BambooWorkflowInterceptor.java:53)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor.access$000(BambooWorkflowInterceptor.java:16)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor$1.call(BambooWorkflowInterceptor.java:33)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor$1.call(BambooWorkflowInterceptor.java:29)
	at com.atlassian.bamboo.util.BambooProfilingUtils.withUtilTimerStack(BambooProfilingUtils.java:49)
	at com.atlassian.bamboo.ww2.interceptors.BambooWorkflowInterceptor.doIntercept(BambooWorkflowInterceptor.java:28)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)