I've recently upgraded the iOS on my iphone where I want to use Collector for ArcGIS. I had a map that was working prior to this upgrade and now get the error of "No Collectable layers are visible" when trying to collect data. I suspect this is the root of the problem.
We have some devices in the office where the iOS has not been upgraded and they still are able to collect data as expected and as before.
Has anyone else seen this issue in the last couple of days? If so, have you been able to figure out a way around it or if ESRI is aware of it?