Dropdown doesn't roll back up when a question is answered

When an item is chosen from the drop down menu, it doesn't roll back up so the next question can be answered. I have to click outside the drop down for it to roll back up.

Unfortunately, this is how the Checkbox with Dropdown widget works. The widget is best to use for multiple selection. If you only need one option to be selected and closes the option section once an option has been selected, you can use the regular dropdown field.

Do let us know if you need further assistance.
Regards.