XBLOCK prolem

[maksimus86pl]

Hi, I have a simple xblock to evaluate the task by the teacher. Everything works, but it is momentarily visible in the progres and gradebook and then disappears. The innedo xblocka again appears and after few moments disappears again. In course view is always visible

class TrainingXBlock(XBlock,StudioEditableXBlockMixin): has_score = True icon_class = 'problem' display_name = String( default='Staff Graded Assignment', scope=Scope.settings, help="This name appears in the horizontal navigation at the top of " "the page." ) weight = None points = Integer( display_name="Maximum score", help=("Maximum grade score given to assignment by staff."), default=100, scope=Scope.settings ) comment = String( display_name="Instructor comment", default='', scope=Scope.user_state, help="Feedback given to student by instructor." ) editable_fields = ('display_name','points',)