So @rshatskiy the issue you’re having is that, in List Shifter, the “shift” operations like Shift Item are asynchronous. That’s by design, BTW. I’m mobile at the moment, so cannot recall if Shift Up/Down triggers a “shift complete” event (but I don’t think it does).
The design intent is NOT to support doing a database operation after any of the shift functions, but to do them in the page and then save/submit when the user is finished messing around (via a save/commit button press or similar).
If you want a synchronous version of this functionality, check out my new Floppy plugin, where these operations ARE synchronous. (By design.)