replied on February 5, 2024
If you are using the Classic Designer, that means there is CSS that is being applied to those fields to dictate that they are side-by-side and how wide to make them. There is obviously some difference between the CSS in the two forms.
I recommend checking what CSS Class(es) are being applied to each of the fields and comparing to the CSS code that is on the form for those classes.
I know that answer is kind of vague, if you want to share the full CSS code that is on both forms, along with a screenshot from the CSS and Javascript page that shows which classes those fields have, we can probably help diagnose more accurately.