I tried the new core software dated Sept 28, 2016 downloaded from the Atik site. Happy to report that the filterwheel driver performed with no glitches during a quick bench-trial. The lengthy "moving..." message doesn't appear. Connections are swift. Atik FiterRunner and SGP report identical results after a filter change. Did not get any exception upon pressing the setup button, before or after connection. My SGP version is 2.5.1.17
My observing season is done for the time being. Those of you who can get some time under the stars might want to give this a try. Chris Golden of Atik deserves thanks.
Ajay