Root patches says an update is in progress

Hi everyone,

I've run into an issue with trying to install root patches on my Mac pro 4,1 (flashed to 5,1). I edited the boot args to get the root patches menu to allow me to continue, but now it says it can't patch because there's an update that pending. There aren't any updates going on and I've tried restarting a few times just to be sure. I even searched for processes with 'update' in the name in activity monitor and quit those, just in case. Still no luck. I was able to do it without any issues before when I had a different graphics card, so I'm not sure what's going on. Any tips?