After upgrading to ipadOS 18.1.1, cannot view calendar

After applying 18.1.1 to my iPad, I cannot view any calendar entries in month view (also known as table view). It appears that navigation is completely ignoring all calendar items. Swiping left and right only navigates from one day to the next and completely bypasses actual calendar items. At first, I thought that all my calendar events were just gone because I could not navigate to them. As it turns out they are there, but I can not navigate to them. Therefore, I thought they were just gone. In list or daily view I can still navigate to them and read them, but not in month view which I prefer.