**System Information**
Operating system: Linux-5.4.0-89-generic-x86_64-with-glibc2.31 64 Bits
Graphics card: Quadro GP100/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.91.03
**Blender Version**
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2021-11-01 19:48, hash: `rB75f5edcaf338`
**Short description of error**
In the latest master the experimental sculpt vertex colors are always displayed as black, unless the object is in sculpt mode with all modifiers disabled and all shapekeys removed.
{F11675944}
**Exact steps for others to reproduce the error**
- Enable the experimental feature "Sculpt Vertex Colors"
- Switch the viewport shading color to "Vertex"
- Enter sculpt mode on an obejct
- Use the "Paint" brush tool to paint the object
- If that isn't working, reset the brush settings in the "Brushes" tab in the sidebar
- Go back to object mode and the object should show up as black.