I have the "Forums" tab set to take me to the Forum Index. However, it is a link to some other page (which doesn't exist and tells me that there's an error). For now, I have to scroll over "Forums" and then click on the Forum Index link. I tried setting it in the Control Panel, but it was already set to link to the Forum Index. I don't know if none of the navigation link features work, just that one that I stumbled upon.

You have to actually set it in the UCP.

Wow, that's messed up. I figured it was already "set up" because the option "Forum Index" was already selected.

There's two bugs here that I'll fix.