We are using DatePicker and DateTimePicker with DateInput.
Since Kendo UI 2021 R1 the DatePicker is showing the DateInput mask when the value is null. The DateTimePicker behaves correctly.
I've prepared an example. The value is set to null manually here, but in our code it is set via MVVM binding.
1. Select Version Kendo 2020 R3: The DatePicker and DateTimePicker are both empty. That's the expected behavior.
2. Select Version Kendo 2021 R1: The DatePicker now incorrectly shows the DateInput mask, the DateTimePicker shows the empty picker correctly.