Hi janvangastel! It appears to me that the first "blink" changes the color of any annotations on the book and smooths the lines a bit. If you draw something on there, you'll notice that the lines become lighter after the first blink. In the journal, this does not need to happen. In fact, if you turn off the annotation of the ebook, you won't see the double blink. At least I don't in the quick test I just ran.