I don't know if anyone else is having this issue but for some reason a hair particle system is causing cycles renderer to hang at the initializing stage and I have to force quit blender.
If I turn off the particle system the scene renders fine. I've narrowed it down to the children section, I have it set simple which is the best look for the hair I'm rendering however if I set it to interpolated the scene renders fine but the look isn't what I want.
Can anyone help?
I'm using a Macbook pro 2018. OS Catalina 10.15.7 Blender version 2.91