I have used SF 6 Pro with ASIair on my iPad for about a month with no problems however I am unable to establish a connection between SF 6.4.0 on a MacBook Pro (OS 10.12.6) and the CEM40, there is no option to select this mount in the list of mounts. The "iOptron CEM/iEQ/AZ pro" option does not work. The suggestion that SF5 may work is not an option since this version in not available through the App Store. I have used SF since V4 but no longer have old copies. I would like to use Kstars/Ekos plus SF to control my observatory but this link is broken.
SkySafari 6 Pro On macOS 10.12.6 Does Not Connect To An iOptron CEM 40 Using ZWO ASIAIR (Answer: Needs More Help!)