A small patch was released at
NA - 06:30 AM 04/04 [PDT]
EU - 01:30 PM 04/04 [UTC]
This patch will address the following issues:
1. Fixed the issue where Green Grade items +1~+15 enhancement rates show up lower than they're supposed to.
2. Fixed the issue where using Valk's Advice and Valk's Cry doesn't raise the enhancement rate in real time.
3. Fixed the issue where your controller stops working if you press cancel when you're using the Pet Appearance Coupon
4. Fixed the issue where “This page is not yet available” is periodically displayed when selecting a Pearl Shop / Event Banner.
In order for these changes to be applied, you will need to restart your game.