This bug was fixed.
My inventory gets stuck and I can no longer scroll in it. There’s an empty field at the top.
Seems the easter eggs have something to do with that but that’s not proven.
Change to a different tab (like aspiration, job or needs) and back. The inventory should then go back to normal. Do this a few times if it doesn’t work in the first try. Traveling also seems to unbug the inventory.
You’ll get it back the next time you’ll find easter eggs though.