Resolved 3rd Anniversary event bug

Hello everyone,
Does anyone experience the same problem as me? I can't seem to see the miracle cube (someone mega-ed about it) as well as other event items. Such as the Big Cream Puff, Anniversary boxes, and Anniversary tickets.
Yesterday, the Big puff daddy was spawned and I went. After killing it, I went to talk to the NPC to exit the map as well as to get my share of big cream puff. However, I got disconnected instead, and didn't get any puff. That aside, I cant see the Valentine's Day Chocolate (from previous event) too. Wanted to throw it out of my inventory and I got disconnected too when I clicked on it.
As for the Birthday cake piece (the one to donate to make Big puff daddy spawn), there's a untradeable tag above it. I can throw out the cake, but I can't give others via trade.
My Mac is currently running on Sierra version. I did not encounter such problem at any other event except this, hopefully someone out there have a solution for this.