I discovered this today while using L4 and then saw that it also occurs in L5. A lot of times when I am just reading through a resource, I will open the resource in a floating window. If I open up the Favorites menu and click on "Set" in the bookmarks list, it does not set the bookmark in the book I am reading, even though the floating window is selected. It always sets the bookmark to the last selected docked panel. If I use the shortcut key (Ctrl+Shift+9), it works properly. This has been repeatable for me. I am assuming that this is happening because my Favorites list is not in the floating window and is de-selecting the floating window when I click in the Favorites list. If the Favorites list is in the floating window, it works properly, so this may not necessarily be a bug...
