[DiapDealer]

If you're talking reordering files in the Book Browser by dragging/dropping, then no, the newly dropped file losing focus is not desired behavior. At least I don't think so. I'm away from a PC, but I can't recall experiencing that sort of behavior before.

I believe there was some sort of bug concerning the Book Browser addressed in the recent(ish) past having to do with auto-scrolling the window (or something like that). I'll need to do some testing.

To be clear: are you saying that the file at the top of the Book Browser list actually becomes the one highlighted? Or that the highlighted file is merely no longer visible in the widget window and you need to scroll (or click on the file's open tab) to "find" the highlighted one again?