With the new swipe from the left side to pull out the menu this can happen.
So I have items in sabnzbd that are just paused nzbs.
If I start to swipe from the side where the image is for arrange, and pull out the menu, down at the bottom I get a notification in blue "Item has been moved" (picture below)
Small thing, but maybe the app can see if the order of nzbs has really changed. And if so than display that message.