This might not help but it might be worth checking into. Most times when I cannot see a folder it's because it's new-ish or recently modified. I just click on the refresh button and it then appears. In cases where this does not work, I go through a more rigorous method of logging out of Pro, shutting it down, restarting PC, then opening Pro again and logging back in.
But I'm guessing your issue may be deeper than this and more of a bug.