Metadata link button not working

I am attempting to link some metadata fields, but for some reason the link button is not working. It is acting very strange. I attached a video for reference. Essentially, whenever I hit the link button on any one of the fields of metadata under either the Clip or XMP file windows, it turns gray and does nothing. Then if I deselect the clip and select it again, I have the option of clicking the click button again. I can also drag the bounding edge of the window over the button and expand it again and the option to click the button appears again... I have tried uninstalling and reinstalling. I have tried restarting the computer. I have tried creating a completely different project on my computer's desktop with different video files and the same thing happens.