System Information
Operating system: Windows 7 Home Premium 64 bit
Graphics card: NVIDIA GeForce GTX 780 Ti

Blender Version
Broken:
2.80 2019-01-14 19:48
Hash: 84c06e996a7a
Worked: (optional)

System crashes when mouse is released after using Smooth/Randomise tools.

I have had no problems in the past with the 2.79 version, but with 2.80...

From startup:
Click to remove Splash Screen
Delete cube
Add UVSphere
Select Edit Mode
Enable Randomize (or Smooth)
Mouse LMB + Drag to use tool
Mouse release -> Crash!

As I have 3 monitors, I have rearranged some of the workspaces (L M Scu U T Sh & A) and have Blender spread over 2 monitors and a Web Browser open in the third Monitor. I have not got around to rearranging the other 3 workspaces (R C & Scr) yet.

I discovered that if I carry out the operations above in the Scripting workspace, which I have not altered, the issue does not occur. I started to test this issue and found some other odd behaviour.

If, after removing the SplashScreen, I Load Factory Settings there is no problem, the tool works correctly..
But if I Load Factory Settings, change the workspace (eg splitting the 3d window into 2 windows: 3d & 3d Quad) and then Delete cube, etc., the problem returns.

Hope this helps, regards,

Alan Romp