• Create new 3D project
• Add an image asset to project (e.g. from content library)
• Drag the image asset from assets view on a material in navigator and select target map

--> Get a confirmation dialog about copying the image into the porject with the same path image already has. It should not ask to copy since image is already a project asset.

If you click "yes" Get error dialog "Could not add <image> to project" and the image is deleted from the project. 

If you click "no", texture is created under the material node rather than under material library node.

Related image dragging issue: Dragging a texture from content library directly under material library node creates an Image node instead of Texture node.