Phinigel Server, fancied doing this for one of my alts. Cleared everything up to Rikabi the Riddler, followed his dialogue until he said his riddle: "My mouth bears whiskers but no teeth. I have scales but I do not weigh. You can bait me with delicious food but please, no drink today." So I picked up items from the floor until I had catfish, tried to hand that in & .........he won't accept it. All he says is "I have no need for this, <name> you can have it back." I thought this was strange so I picked up all of the items & tried again, still refused to take the catfish. Tried to hand in a few more times, each time it was refused. Then the Pookas came & Destroyed my party. Seems like a bug to me that he would not accept items.
So, I tried it a second time, this time went through the dialogue but before clicking on [Ready] I went and picked up all of the items from the ground first. Clicked on Ready, he gave me the riddle & ..........yet again, he will not accept the correct item I though well, gonna die anyway and tried handing in all of the items but none of them was accepted. I then tried Hailing him & going through the dialogue he stops & says he already gave you the riddle at which point the pookas attack, which is what I expect from a failure to hand in the correct item or in these two attempts, no item. This is broken.
Checked my logs, seems the emote that the door unlocked is there but I couldn't open the door. Will try again.