I'm trying to configure popups on a dynamic map service layer. While the popups display and work just fine in my web map in Portal, they will not display when I load the map in Explorer for iOS on my iPhone.
The layer is a dynamic map service with several sublayers and I'm configuring popups on several of the sublayers. I have several other maps where this is working just fine with other map services so I'm guessing it must be something unique to this particular map service but I have no idea of how to figure out what it is.
The service is secured (token) or I would share the url.
Is there any options that needs to be enabled in ArcGIS Server?