Under iOS 14, the date/time pickers in my app are broken. Nothing changed in the project. They're defined in a storyboard and worked fine until I updated a few days ago.
Now they're not spinners; they're large grey boxes with static text in them.
UPDATE: Apple broke existing projects by defaulting date/time pickers' style to "automatic", instead of "wheel" (the only style that previously existed, and for which everyone's existing screen layouts were designed). See Sanzio's answer below.

