Is anyone else struggling with ProctorU to have access to Argumentative Writing?

I'm registered for the June 2026 LSAT (June 5th), which means that the Argumentative Writing should be available to complete by now. I managed to login to ProctorU, download the browser and all that, successfully. The only problem is that the website won't let me register for a new exam to be able to actually complete the Argumentative Writing. Did anyone else have this problem, and if so, how did you figure it out?