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
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-25 05:34, hash: rB0e1c6a29cbb2
2.93.0-4a784f32fe1e-windows64 already have this bug
Short description of error
When I enable Cycles render in viewport all line-objects disappear: empties, lights, curves, wireframes etc.
Tested with factory settings too.
Also wireframes disappear only for cycles area, not for all viewport.
Also Blender renders wireframe at first, but hide after rotation and it is no matter if I render with CPU or GPU