1) Use this StackBlitz application: https://react-scwx3i.stackblitz.io - This is based on Telerik's own DatePicker React example.
2) Highlight the AM/PM section.
3) Try to change the AM/PM section via typing. It doesn't change. Note that other fields in the date/time picker are responsive to keyboard input.
Expectation is that the AM/PM section should respect at least "A" and "P" inputs.