System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.09
Blender Version
Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-02 14:36, hash: rB7872bcafa0ff
Caused by rB517ff40b124b: Cycles: Implement tile stealing to improve CPU+GPU rendering performance
Short description of error
Adaptive sampling introduces random errors on the stolen tiles
Exact steps for others to reproduce the error
Open the following file
Enable GPU+CPU mode in the preferences
Hit F12
If it's not very visible the first time, try again