I'm gonna fiddle with this and see if I can fix it. But if you're saying it's when her hunger went down, it might be her hunger timer conflicting with the "all item" achievement somehow, which is why it got triggered with the phone? I cant see why the phone specifically would do anything unless it's that, cause that's the only special condition tied to it.
I tested it some more in the browser version uploaded here and managed to recreate what you're all saying but without the phone, so it's likely the timer. Dunno how I didn't manage to catch this even in the short time I was working on this lol