When I look at the account/bank endpoint for my account, I have the following in the results:
The Item is https://wiki.guildwars2.com/wiki/Mad_Memoires:_Complete_Edition
It is the only thing in my bank with stats. And according to the wiki page, there shouldn't be any stats. Is this an error in the API endpoint?
Was I able to help you or give you a hint? Click on Helpful and/or Thumbs up, I would appreciate it alot!
When you encounter a bug ingame, at first you should file a ticket via the ingame command /bug, as only this way the devs will know exactly where you were, when the bug happened.