Welp, I learned the hard way that if you're trying to upgrade one person on a res, split the res beforehand. I tried to upgrade/waitlist myself only on a multi-person res, and did so by selecting only myself to be upgraded via the upgrade page. When I did so and got to the end, somehow it resulted in an additional person being waitlisted as well and spun off to his own res. I now have 3 res (1 for me the upgrade, 1 erronous one and the original one). Having to call in now to cancel the upgrade, but now more people are split than I wanted. Very annoying.

I knew something funny was up when the web page at the purchase screen froze for a little bit. Still that shouldnt have caused it...