Operating system: Win 10
Graphics card: NVIDIA GeForce GTX 750
Broken: 2.8 Beta
Short description of error
In vertex paint mode SHIFT + K doesn't update the mesh color. after one click it updates.
Exact steps for others to reproduce the error
add a cube > Go to vertex paint mode > choose a color > press SHIFT + K
Also clicking on the Set Vertex Colour from the Paint menu doesn't work!