When the DateInput value is in February, AllowCaretMode is true and you type a date of 30 or 31, the caret will jump to the end of the textbox content, after the year segment.
Here is a test page: https://blazorrepl.telerik.com/cpkmugvl11AMdpgn21
<TelerikDateInput @bind-Value="@DateInputValue"
Format="dd/MM/yyyy"
AutoCorrectParts="false"
AutoSwitchParts="true"
AllowCaretMode="true"
Width="200px" />