**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.12
**Blender Version**
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-09-20 20:10, hash: `rB13a4bccdb196`
Worked: (blender 2.93X (.1/.2/.3/.4)
**Short description of error**
Attribute node set to N (which was the normal value in 2.93x versions) no longer works. Attribute node seems to be flaky in general
**Exact steps for others to reproduce the error**
[In shader nodes, add Attibute node and set to 'N']
{F10531149}
{F10531142}