System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 432.00

Blender Version
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-06 20:54, hash: rB3a35301fd16d
Worked: (optional)

Short description of error
When I try to edit the keyboard shortcuts and modify the attributes the panels close unexpectedly.
I have tried the stable and recent version, and restarted the computer.

Exact steps for others to reproduce the error
1 Open preferences.
2 Go to the Keymap tab.
3 Add and edit a new Rotate View / View3D Rotate Modal