Hi Joel,
I do see this as well. I have not time the delay. I connect the filter wheel manually by clicking the button on the sequencer dialog. It says "Moving..." for a while. If in that time I get impatient and click disconnect and connect, or clock the "settings" option, I get an ASCOM error. If I m patient, the filter wheel eventually responds, in perhaps a minute. The correct filter shows up in the docked filter wheel module of SGP. I will say that I have only imaged with the L filter and have not attempted automated filter changes during a sequence. That could pose a problem.
I see that the Atik developer has not responded to your post on the Atik forum. I also wonder why we have not seen more reports. Is it because fewer people are doing automated filter changes as through SGP? I am a little short of time as I am on my way out to a dark sky site. I'll help trouble shoot after I return. I've attached what log files and images of error dialogs I have at the moment. The ASCOM Atik logfile does not have any entries related to the filterwhwheel.
In the short term, the solution for me is to leave the filter wheel alone while its moving -perhaps increase the delay even more.
Ajay
sg_logfile_20160731224141.txt (1005.8 KB)
ASCOM.Atik.0442.296200.txt (258.7 KB)