Calendar "Switch View" Button Disappearing

Bit of a weird one since I assume this is partially intended functionality but if you use the button to toggle to back and forth, then resize the window to be 900px or less in width the switch view button disappears but doesn't change the calendar display to the schedule mode. If, however, you refresh the page with it still at that size then it automatically switches to schedule mode and the button still isn't there - which I assume is the intended functionality. The issue also doesn't happen if you resize the window without using the button beforehand, it only happens if you toggle the button before resizing.