"Invalid texture used for cursor - check importer settings" warning spam since Unity 5.4 update

Hi everybody,

since the Unity 5.4 update my console is being spammed with an endless stream of the warning "Invalid texture used for cursor - check importer settings".

Yes, I've got a custom cursor, and it's changing every now and then using the UnityEngine.Cursor.SetCursor() method. It still works great, if it wasn't for the warnings spamming my console.

The importer settings of the Cursor-images are the same I use for many other sprites that render well and do not throw warnings:...

"Invalid texture used for cursor - check importer settings" warning spam since Unity 5.4 update