Hello!

I have my RD Tabs set up to load Favorites in a new tab. The funky thing is, when I first open RD Tabs, then choose my favorite, this still happens. In doing so, the first tab has no connection, and never will so long as I only use favorites, and so must be closed manually.

I say that if there exists only one tab, 'Always open favorite in a new tab in the active tab pane' is selected, and this tab is a 'New Connection' tab, RD Tabs either loads my favorite in the existing tab, or closes the existing tab and connects in a new tab. In the end, there should be only one tab open.

Yeah?

To me that doesn't seem like expected behavior. If you select that you always want a new tab (as you have), then RD Tabs should always create a new tab, no matter what. It sounds to me like what you really want is one of the bottom two options:
1. Open favorite in a new tab only if the active tab is connected, otherwise use active tab <-- If a tab is NOT CONNECTED, it will use the existing tab, otherwise it will create a new tab
2. Open favorite in the active tab only if the active tab has never connected to any computer <-- If a tab is "New Connection" it will use this tab, otherwise it will create a new tab (this sounds most like the behavior you seem to want)