Did Nexon change the scroll drop rate of Tae Roon?

So earlier tonight, I decided to start Tae Rooning again after a 4 month hiatus. Back in October, I was getting around 1-2 scrolls per each clear. However, when I tried area bossing tonight, I went 7 clears without a single scroll dropping. Am I just having incredibly bad luck or did nexon change the scroll drop rate from Tae Roon and possibly other area bosses?

You're having very bad luck. Back in my area boss hunting nights, my timezone would let me kill more than 300 a night. Sometimes, not a single scroll.

Eh its true. Was just having bad luck =). Hopefully they will drop more frequently from now on. Took 360 Tae Roons to get one scroll

what is a "clear"?

what is a "clear"?

Killing all of x boss from channel 1 to 19.