I rendered this image in Blender 2.81 Alpha.
The helmet has a simple glossy shader with roughness set to 0.265. I'm rendering this in Eevee. The blue is coming from a spotlight in the back. What is causing the lines to appear in the glossy reflection and how can I remove it?
Things I have Tried
Cranking up the sampling numbers
Applying all modifiers I have in modifier stack
I would love to provide more details if you need it.