Due to an potential exploit related to drops from Jade Fragments, we have temporarily disabled the drop of Jade Shards from the fragments. Players may continue to mine Jade Fragments for Unbound Magic and Bloodstone Dust, but will not get Jade Shards until we have addressed the issue. Thanks for your understanding.
Shouldn’t this be posted in News and Announcements, with updates like Ember Bay disabled content? https://forum-en.gw2archive.eu/forum/info/news/Ember-Bay-Changes/first
It would be much easier to track.