System Information
Operating system: Windows-8.1-6.3.9600-SP0 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-10 04:47, hash: rB70e73974b593
Worked: (newest version of Blender that worked as expected)

Short description of error
1st mode work as 4th when dyntopo enabled.