Closed Issue: AjaxContainer : sys.invalidoperationexception owner must be set before initialize [26552]

I have all the tabpanels well placed within the tabcontainer and yet get the error. Works fine in the dev environment and most live users do not have a problem.But throws this error to users on a slow machine/network. Problem here is tabpanels cannot find the tabcontainer.

This issue has been reported several times by various people, but the issue status has been marked as "Closed" without actually providing a resolution. This is really frustrating. Could you please provide a quick patch as soon as possible? Thanks.