[@Zarkun]
It wasn't mentioned in the part when splitting up, which lead to a possibility that it wasn't remembered
I just rolled with how I could interpret it so yeah ... There was no real mention that it was going to be in on the next floor or anything
You know, vagueness means that people can do what they want usually

Note:
Also I posted at 3 am, so I might've missed it, although not sure if I did or not when I think back