Global Illumination - How do I turn it off?

I’ve created a toon shader in Unreal 5.4.
However I can see some of the light bouncing off the object’s surfaces, as if Global illumination was turned on.
I tried turning them off by trying these methods>>. None of them worked.

I looked in the post process volume, turning off “indirect light color” doesn’t help.

I don’t know where else to look. I want flat colors, not bouncy raytracing.
Please help.

I think I solved it. Posting it here in case someone else needs it.