Yahyah's Items: Bug Or Bad Rng?

So My party of 5 people, which has now turned into 8 standing in front of Yahyah's house, cannot get the items to work and open up the basement; the Small Mushroom, Painting, and Spoon. To clear some things up before people post replies...
- We did NOT switch servers or do /class while getting the items.
- We've tried >>4+<< sets of items and doing things exactly the way it's supposed to happen.
- When our first set didn't work, we jumped to another server # and gathered duplicates of all the items and try the hopper in Yahyah's multiple times.
- Last time I did the quest or walk anyone through it was before the Corkus Update, which as many people know caused a host of bugs in pre-existing content, such as Fantastic Voyage and others.

Please, someone provide me with any kind of insight possible as to what's happening. I'm listing their usernames below, as they could vouch for me and give you their perspectives.

People in my party:
AmbassadorArt
xXyULissa79xXgod
Chownick
NicBOMB
IAmABriefKase
​

 

Are you sure that nobody did /class or /hub after getting the items ?

 

1000% sure, trust me, I drilled it into their heads lol and they confirmed.