>>Calling Destroy() method directly (or release method directly) works?
>>
>>E.g. array[i].Destroy()
>> array[i] = null
>>
>>?
>
>Tried all / Did not work.
>
>I am going now analysing all the way trough to see if something else got attached holding objects that I overlooked...

Doesn't work means you're not stepping in the Destroy method or the session is still there after the Destroy got called ?