The affix created by Obsidian cannot be removed by Kyanite anymore

Is this a bug?

Crystal affixes found on legends and crystal affix found from obsidian was never able to be removed by kyanite.

The absolute only way to remove crystal affix is to use quartz to disenchant. It is extremely risky though because often times, it removes too much of the item and yea. Not good to do on rare legends but good to do on items with affixes that are common to find from crystal.

If I’m not mistaken, quartz removes affixes from bottom to top. So if you get the wrong affix, it might be more time efficient to farm the item and an obsidian and try again.