Hello does anybody meet the same problem?
When the issue occurs it is like this: user creates a new task - ok, user opens task properties of some task - ok, user tries to create another task and form is prepopulated with data from last opened task - NOK.
Issue: login, open project, task list, create new task - result ok, from task list open created task, click return button, then from list click new button again and application will return same pop-up as property detail of previously created task. When you logout and login again, it can be reproduce.
workarround for undefined time period is flush caches action.
I have information from other partners that they reach the same problem in other customer environment.
we have it on 15.1 (last patch) but from colleagues its on 14.4 (last patches)