bug Mutated Kaneus - heine

hello :d

i have a problem on the quest mutated kaneus. i did kama 46, 3 or 4 times but i cant have "weird burnei's cellular tissue".
someone know what can i do?thank

 

isn't that weird tissue obtaibable from 43lv kama? and normal one from 46lv?

 

in kama lv43, i received item "blade otis' cellular tissue". i haven't received the next quest item "weird burnei's cellular tissue" in kama 46

 

i have the same problem. i did kama 46 and i didnt get the qeust item. i hadnt such problems with previuos kamas.

 

it's definitely bug. weird burnei doesn't give quest item.