I have this problem and i don't know what's really causing it. As you can see, the first particle system looks fine, but the don't look so good, they can't barely be seen, and seems bugged
The hair settings of the 3 particle systems are exactly the same (the only thing i changed were the children displays)
Here is the complete hair on normal viewport
I tried changing the stack order, the hair cycles settings, but nothing can solve it.
Anyone knows what's happening and what should i do?
Thanks ;)