LIST vide keeps changing widths

When in LIST view, for example, I have a shared drive on my PC I can connect to (Downloads folder) and when I see the list of files/folders it’s about half the width of the TV wide, as I scroll down the list, it will shrink to 1/4 of the screen along the right side, and back and forth. I’ve switched views back and forth but same issue. As I scroll up/down my file list, the column goes between wide and narrow.