Object not found error

Although there is a solution mentioned about 8 months ago to solve this problem (disabling auto-edit), this is not possible for our solution. We make use of the form list functionality which depends on auto-edit being always “on”. The seconds possible cause is that we make use of state changing forms. This means that a user enters data in the form and when done, clicks on a task-button to post the form to be processed by a backoffice system. The task-button starts a process which performs additional validation and when successful posts the form. The posting of the form changes the state of the form by which it is no longer visible to the end-user and the form is automatically closed using a process task. The form is closed, but this does not prevent presenting the “Object was not found...” error message. We know that the form is no longer available (due to no longer complying to the filter condition of the variant), but cannot find a way to suppress the error message.