Remember my rant ?
Originally Posted by Alrik Fassbauer 
I just crafted in the Kundarak crafting halls … I destroyed a shard !!! And before that, days ago, without noticing, another one !!!
[snip]
And then it replaces the one shard with the other one.
Without any asking. Without any warning. Without any error message. Without any hint that this belt might perhaps NOT be able to hold TWo shards at the same time !
I had sent it in as a bug report.
And this has been adressed :
Quoted from the U13 Release Notes :
It is no longer possible for players to mistakenly overwrite prefixes and suffixes when you apply a new crafting shard.