Did Nexon remove 1.5x buffs from Anv. Boxes?

I just used 50 and didn't get a single damn one.

.....Good thing I decided to open 50 on my Kanna a day in advance before I try to get her 100-120 tomorrow. She needs the buffs in order to pull it off in 5 Evolving World runs. (Unless I can actually get in a party with her since she's Kanna. Everyone loves increased spawn rate, right?)