It could be vital information to know the following:
I am using one light source which is set to stationary.
I have custom well made light maps and my models are using them.
The Tree model that you see in the view port is a combination of small blocks that are then combined into one mesh using the [Convert Selected Components Into Blueprint Class]. This means that each block is it’s individual model, but together becomes a prefab.
I have built the light for the scene.
I want to be able to use static lighting and lightmaps. So removing the (Allow Static Lighting) is out of the question.