IS there some hidden hard to activate requirement to spawn Ceto?


I spent 360 minutes (re-entered instance) to spawn Ceto and it only appeared when I had 5 minutes left and the instance was locked...

I just spent another 180 minutes trying to spawn Ceto with it spawning at 7 minutes left (locked instance)...


Why is it sooooooooooooo hard to get Ceto to spawn?? What's the point if it's only going to pop when I'm about to be time booted from the instance??


Can some one please tell me what i'm doing wrong, I'm trying to farm for the boss item drop but it's impossible and I can't even stay in the instance long enough for Ceto to spawn....Is this a bug? Does Ceto have some old cassie coding that causes it to not exist???


please help me, it's doing my head in