Error message when dragging and dropping an image from Asset Library to Navigator

Steps to reproduce:

• Create a project
• Add some png asset to the project
• Drag and drop it to Navigator on top of root Rectangle
• -> Image is created and seen in Navigator and Form Editor. An error message as in attached picture is shown though. 
• Same happens also when creating a quic3d texture by dragging and dropping image asset on top of material in Navigator