Operating system: Linux-5.8.0-7630-generic-x86_64-with-glibc2.32 64 Bits
Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.32.03
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-05-21 07:43, hash: rBc154b078b529
Worked: last week (no specific hash, sorry)
Short description of error
An object-linked material slot does not properly assign a material to generated geometry. This worked previously and adding an Assign Material node seems to fix it, even though nothing is filled in. I guess this has to do with the evaluated material slot list not behaving as it should.
Exact steps for others to reproduce the error
See this file: