Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: rB0f45cab862b8
Worked: (newest version of Blender that worked as expected)
Short description of error
The noise texture is generating horizontal stripes. This happens with CPU and GPU rendering. Can't seem to reproduce it with the default cube so I pared down my model to make it a bit simpler to see.
See the attached image and blend file:
Exact steps for others to reproduce the error
See attached image and blend file. View the texture with EEVEE or Cycles.