Anyone having an issue with creating a fixed schedule?

just planted some seed in my backyard and I am trying to create a fixed schedule for only that zone. I have removed that zone from all other schedules, and when I click on fixed, I am greeted with a white page that shows nothing. I have tried multiple computers and multiple browsers. Anyone else having this issue? Going to have to hand water the new seed if I can’t get this resolved.

Yes, having it now. How did you fix it?