I have all of world buffs as my collection and were stored in Chronoboon Displacer in my bag for entire time through TBC. I accidently bank it to one of bank bag. I noticed world buffs disappeared when it lands into the bank. I tried to take it out and I dont see world buffs anymore. I decided to travel to Ruins of Andorhal to pick up other Chornoboon Displacer from Chromie. I thought it might be a visual bug that world buffs does not show in Chornoboon Displacer. After I picked up other one, and I activate the world buff from using Chornoboon Displacer. Yet, I don’t see any buffs show up, therefore its gone. I click on the new Chornoboon Displacer to see if it would store the “visual bug” (which I thought) and none shows up at all. So, figures for the whole time, once Chornoboon Displacer with world buffs stored in it lands on bank and everything disappear.