Normally the value is accepted with the Enter key.

But leaving the input field is also accepted.

But the problem is the last field, where leaving doesn't seem to work.

Try creating an empty input field as the last field. You can make it as small as possible so that it doesn't get in the way. You can enter a high address as a parameter (e.g. VW800), which you do not use.

For this case I have no solution for you.

Start a Support Request.