Guild Wars 2

“Liquid World Experience is now available as a drop in WvW rank-up chests. When consumed, characters receive a set amount of WXP.”

Above is taken from the patchnotes. I just gainded a WvW rank, but didnt had any of those in my chest. Bugged? or is it a random/rare chance drop.

I hear it has a low chance to drop from the WvW chests and will drop from other places in the future.