EKEventEditViewController has missing section background color

When presenting EKEventEditViewController, it appears that section background is missing. Do you have an idea why?

Here is my simple code:

self->_eventEditController = [[EKEventEditViewController alloc] initWithNibName:nil bundle:nil];
self->_eventEditController.delegate = self;
self->_eventEditController.eventStore = self->_eventStore;
self->_eventEditController.event = event;
self->_eventEditController.editViewDelegate = self;
            
[self presentViewController:self->_eventEditController animated:YES completion:nil];

Thanks for your help