Confirming the same on Windows

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

Blender Version
Broken: version: 2.83 (sub 0), branch: master, commit date: 2020-01-10 17:32, hash: rB01d9a2f71b56

When trying to update the key frame in the graph editor's sidebar, I was able to record this error. All other crashes have resulted in the Exception Access Violation without giving any errors before.

Error: animation channel (index = 8) not found in mouse_anim_channels()
Error   : EXCEPTION_ACCESS_VIOLATION
Address : 0x000000014047E5E3
Module  : C:\blender-git\build_windows_x64_vc16_Release\bin\Release\blender.exe

Crash occurs on even previous steps:

• On Default scene, frame 1, select cube, hit I and choose say locrotscale.
• Change frame, hit either of the keys G, S, R and move mouse and I get this message in console:

BLI_assert failed: /Users/ankitkumar/blender-build/blender/source/blender/makesrna/intern/rna_access.c:3038, RNA_property_float_get(), at 'RNA_property_array_check(prop) == 0'
(lldb)

System Information
Operating system: Darwin-18.6.0-x86_64-i386-64bit 64 Bits
Graphics card: Intel(R) HD Graphics 6000 Intel Inc. 4.1 INTEL-12.9.22

Broken: version: 2.83 (sub 0), branch: master, commit date: 2020-01-10 10:40, hash: rBbefc0827362d @Sergey Sharybin (sergey)
Working: 2.83 (sub 0), branch: master, commit date: 2020-01-10 09:26, hash: rBc3d6929e4f21