OOTB workflow gives error when user rejects in the document in publishing a major version.

Question

Hi All,
I am using OOTB workflow with little customization  with following configuration
1. Allow content approval enabled
2. Configure a workflow with following general settings true
3. Start workflow on publish of Major version only is enabled
4. workflow has following configuration enabled.
Now, when user start publishing of major version and Starts the workflow. workflow starts without any problem.
But as and when the user rejects the document it is rejected with Reject status with "Approval Status" as well as workflow status which is expected.(This is correct )
But when i look at the workflow history i can see at last line there is an Error with
An error has occurred in In [Workflow Name].
Now when user check out and check in item again and try to publish with Major version again. it gives errors that the previous version is still running.
I have trace a lot and also test with original OOTB workflow itself. it is behaving the same.
As per my findings there is problem in "Completion condition of this task process" the end task process is not being executed correctly.
I tried to end the task process with End the task process action but it is still not working.
I need some help in this issue as users are facing problems in case of rejection. I hope some one has the solution for the same.
Two things i have noticed are
1. My MS office 2010 professional plus is expired as i was using trial version
2. I have made stop inheriting tasks permission and remove all default groups as i have settings in workflow "Only allow task reception and process owner to read and edit workflow task"
3. Earlier i had also installed "Sharepoint 2010 April 2012 updates". i had also observed that (installing Sharepoint 2010 April 2012 updates) before that if user has selected "Automatically rejects the document if any participant rejected". it ends
with "rejected" status. At present it remains in inprogress and not stops with rejected status.
Can any one give me a hint what should be the problem ? Is it a problem with latest Sharepoint 2010 April 2012 updates ?
Thanks,
S. M. MANIYAR

Answer 1

I have done following testing.
1. The server in which i have not installed sharepoint 2010 April 2012 updates the above scenario is working fine without any problem
2. I have also observed following logs of error in server where April 2012 updates is installed.
8/28/2012 03:51:41.33  w3wp.exe (0x0F08)                        0x0A00 SharePoint Foundation        
 Workflow Infrastructure        88xr Unexpected WinWF Internal Error, terminating workflow Id# 8bf7fef1-c92e-4b22-a16f-480425d3adc6 
08/28/2012 03:51:41.33  w3wp.exe (0x0F08)                        0x0A00 SharePoint Foundation        
 Workflow Infrastructure        98d4 Unexpected System.InvalidOperationException:
CompositeActivity cannot transition to 'Closed' status when there are active child context still exist for child activity.     at System.Workflow.ComponentModel.Activity.MarkClosed()     at System.Workflow.ComponentModel.ActivityExecutionContext.CloseActivity()    
at Microsoft.Office.Workflow.Actions.OfficeTask.FinalClose(Object sender, EventArgs eventArgs)     at System.Workflow.ComponentModel.ActivityExecutorDelegateInfo`1.ActivityExecutorDelegateOperation.Run(IWorkflowCoreRuntime workflowCoreRuntime)    
at System.Workflow.Runtime.Scheduler.Run() 
Following are last two lines of workflow history.
S. M. MANIYAR