It appears that if you attempt to sync and iLinc cannot communicate with ISY for any reason iLinc wipes out all devices, scenes, programs and favorites. The connection failure appears to be caused by iLinc not detecting the correct connection (auto HTTP) and times out. Attempting to sync again restores all devices, scenes, programs but not favorites.
Is there any way to save the favorties to a profile so they are not wiped out?
Also if you hit the "my lighting" in device list the app quits.