Strange flickering for Discs based on rotation

I have some disks and Lines generated to project in front of my player, but it flickers at runtime, based on movement and rotation of the player. I've played around with absolutely every setting possible, distabled every other game object and setting but its still there. Adding a unity plane object doesn't flicker - its just the shapes components. Is this a bug or can someone tell me what I need to do to fix this? Thank you

flickering video