About a week after we launched patch 11.0.2 in August, we began receiving reports of an issue where some players were discovering items missing from their guild banks.
As we investigated over the next couple of days, we found the culprit—a technical update that was made to support cross-realm guilds. An unexpected bug caused one of our maintenance processes to make some items disappear. Many of these items were related to professions materials from prior expansions, but it was possible for players to lose other items from their guild banks as well.
For the last few weeks, we’ve been packing up the missing items that we’re able to identify as lost by this process, and we will soon mail those to the guild leader character for each affected guild.
Due to how some of the data was lost, we’ve reached a point where the result will be an incomplete restoration for some guilds, and we do not have a way to restore the remaining missing items for them.
We apologize for that and for the long wait here. We really appreciate your patience as we’ve worked through this difficult issue.