Locate Media Dialogue Box Will Not Size Correctly

I consistantly have this problem where I'm trying to re-link media and when I get the Locate dialogue box, the folder structure windows are compressed - meaning they don't use the entire window. In the screenshot below you can see the folder structure windows take up about a quarter of the available space and there doesn't seem to be a way to resize them.

Anyone know why this happens or how to fix?

I'm running PPro 23.5.0 on Mac OS Ventura 13.4.1 - though frankly I've encountered this on older versions of PPro & older Mac OSs in the last few years.