I started playing with this new widget in 2.5.6. but I have some troubles with it. Clicking week or day works just fine, but when clicking month it looks like the widget 'forgets' the Height appearance. The height is just one line so no objects are visible. Am I missing something or is this a bug. [EDIT] Problem is solved after entering two events. But with just one event the view is incorrect. [EDIT2] Filling the Title with a microflow does not work. The event will not be showed in the calendar.
Could you make a support ticket with all your Calendar widget problems? Especially the custom formats are tricky to get working in all cases.