Your link calls the map to open in a browser. I would rather have the map open in the ArcGIS app. The formatting of the link below achieves this. Maybe this solves the issue with the browser opening the map - rather, let the ArcGIS app handle the request?arcgis://<organizationName>.maps.arcgis.com/sharing/content/items/<map_GUID>/dataHere is a sample map to try on your mobile devices:arcgis://www.arcgis.com/sharing/rest/content/items/5a2cc24bdb9f4af986cac8f2cda1a106/data
Paul Lohr
Lohr Geospatial Services, Inc.