Multi-Material Assets lose ability to assign individual actor Material Elements if one element has a Dynamic Material Assigned

When you have a multi-material mesh assigned to a blueprint in which one of the material elements is set to a Dynamic Material via the Construction Script, you lose the ability to set teh other elements when the blueprint actor is placed in the level.

Also Reproduced in 4.11 Preview 3 and Dev-Main-CL-2839874

[Image Removed]

1. Create a Blank Project with No Starter Content
2. Import the Multi-Cube.FBX with Material and Textures
3. Create a Actor Blueprint
4. Assign the Cube to the Actor Blueprint
5. In the Construction Script, Create a Dynamic Material Instance and assign it to Element 0
6. Place the Actor Blueprint into the level
7. Assign a Material to any element slot on the Actor Blueprint in which it is not assigned already

RESULTS: Nothing

EXPECTED: The Material is assigned to the Element Slot.

[4.10.2] Creating (!) a dynamic material instance resets material assignment on instance