Prepare Form: Auto font size + Multi Line = non scaling text size

Hey there.

Currently using Acrobat pro to great a flyer with fillable text fields for other employees in the company. Usually I set Auto text size for the text fields and it scales fine with the amount of text that goes into the box. But I was requested to have Multi Lines selected for the text field for multi items to be displayed. When I have both options selcted the Auto font size does not fill to the hieght of the text box but rather set the size to a singular small size and does not scale.

Has anyone had any issue woth this in the past?

Thanks!