Packed Level Actors and Instance Vertex Colors

Steps to Reproduce

• Create a new static mesh in your level, e.g. a cube
• Mesh paint it completely red, Apply the vertex color information to the source mesh
• Apply a material that visualizes Vertex Color
• Duplicate it, so that you have two actors sharing the same static mesh asset
• Create a Packed Level Actor out of them

You now have two red cubes in your level

• Edit the PLA
• Mesh Paint one of the two cubes, make it completely blue, don't Apply to source mesh

At this point, while in the PLA, you have a red and a blue cube

• Commit Changes on the PLA

As soon as you are back in the original level, both cubes appear red again