It appears there may have been a bug with random and possibly corrupted items being in the clan personal depot.
When a clan founder created a clan or a new clan member joins a clan, their personal depot will be reset and any strange values in the depot will be wiped.
The vast majority of players will not notice this.
However, if you clan hop then be aware that you personal depot will be erased when you re-join a new clan.
Clan leaders, be aware of this also if you fire members.
I was struggling to recreate the bug and I am concerned that the solution may cause as big a problem.
Have a think and let me know your feedback or alternatives.
If people have more specifics on the bug then let me know and I may be able to be more targeted if you think the current solution is too severe in its consequences.