Simulate type not work properly when pass a empty string

I want to make a text field empty and type a new string into the text area. But when I set simulate type false it doesn’t clear the whole text area (When there are multiple rows it clears only one row in the text area). If I set simulate type true it clears the whole text area and types the new value. But if the new value is set to a null value it doesn’t clear the text field instead it remains the same. I have attached the image herewith.simulatetype

hi

Can you enable “click before typing” property and try…

Thanks…