Fair solution: Re open Bugged Crystal for 1 day and compensate 1:1
As reversing will be nightmare and only compensating who opened bugged crystals will piss others who didn't. Here is a simple solution that will give fair chance to everyone.
Re open the bugged crystal and let people decide for a day to either use their shards or not. Then do the 1:1 compensation to make it same for everyone.
What do you guys think of this ? This will make it fair for everyone and you will have choice.