Disappearing text from text box when information flows to next page

CommunitiI have a drop down menu on page 1 of my form that is bound/feeds two text boxes on my master page. On text box is at the top of the page and the other is at the bottom. They all function as intended, but when the text fields on page 1 expand and the information flows to the next page, the text disappears from the boxes and has to be selected from the drop down again. How do I prevent this from occuring? Both text boxes are positioned and not flowed. I also have another text box at the bottom of the page with static text that seems unaffected. Thank you.