OverrideVertexColor causes a crash on mobile renderer

Setting Allow CPU Access on the mesh, or setting bSupportsManualVertexFetch=1 in Engine.ini, avoids the crash.

1. Open project settings
2. Set Allow Static Lighting to Off
3. Set Dynamic Global Illumination Method to None
4. Close project settings
5. Place some meshes with AllowCPUAccess disabled
6. Assign a material that uses Vertex Color to the meshes
7. Paint the meshes in Mesh Painting Mode
8. Build lighting
9. Quick launch the level on devices using mobile renderer 
10. (The attached repro project allows you to skip steps 1–8)

Result:

Application crashs with the following assertion :

Assertion failed: LocalVF->GetTangentsSRV() [File:.\Runtime/Engine/Private/StaticMeshSceneProxy.cpp] [Line: 2613] 

Additional Info:
In the editor’s Mobile Preview, the vertex painting is ignored.