1. I can see other people in my homegroup and their folders, but when I click on those folders, I cannot see the contents (no error message, just nothing happens).
2. The other people in the Homegroup can see me just fine, and my files

In addition, I cannot see the files that they have under the network tab, though they can all see each others stuff.

What could be the issue?

The homegroup has already be created and recreated numerous times.

Perhaps unrelated, but I am unable to turn off password protected sharing.