I have a UICalendarView that is embedded in a UIStackView. When I hide/show items in the stack and cause the height of the stack to change, the UICalendarView animates unexpectedly:

Note that the height and width of the UICalendarView remain unchanged and the animation appears to leave the actual content unchanged.

Interestingly, if I select a month with 6 weeks it does not do this animation:

Nothing I have tried has allowed me to avoid this distracting and unnecessary animation. Any thoughts as to why this is happening or, even better, is there anything I can do to avoid it?

Appreciate the help!

(also posted on Apple developer forums)