When loading a webmap in Esri Fieldmaps app on Iphone it asks for a client certificate while if I open the same webmap on a android device (in fieldmaps) it will open the map correctly.
How do I create a client certificate for fieldmaps?
If you are using ArcGIS Enterprise, there was a similar issue reported on Android a couple weeks ago It turned out to be an issue with the Let's Encrypt root certificate expiring. A solution for Android was posted there and perhaps you need to do something similar for iOS.
