System Information
Windows 10 64-bit
MSI R7750
Blender Version
2.80.21, Date 2018-07-31, Hash 9b817bc1689
Short description of error
When you touch the edge of colore whell - blender crashes.
Exact steps for others to reproduce the error
Add greace pencil - blank
Change mode to draw
Draw a stroke
Go to Material
Select Srtoke-Color
Start selecting a color, go to the edge of color wheel - blender crashes
P.S. You must hold left mouse button and make circular moves to crash