Ok, I've installed this thing twice now. Both times, after using it for maybe a day, it becomes obsolete due to a patch, and when I re-install it simply isn't there. The UI doesn't display it. I have no idea if it's present in the background but I can't see it.
I'm not sure why it worked the second time, as I've made multiple attempts that failed in-between the two successful ones.
The files are all in place. What's the keyboard command for opening the UI? I can't seem to find any information on this (at least none that works).