Location Alerts screen loads on map launch when geofencing is enabled in ArcGIS Field Maps

Description

In the ArcGIS Field Maps app, opening a map that includes geofences and enabling the Location Alerts toggle causes the app to remain on the Location Alerts screen for an extended duration before the map loads, or, in some cases, causes the app to crash.

Cause

The issue occurs due to the complexity and size of the feature layer used for geofencing. Large or complex datasets require extensive processing to evaluate geofence conditions, which causes the ArcGIS Field Maps app to stall on the Location Alerts screen and eventually crash.

Solution or Workaround

Reduce the size and complexity of the feature layer used for geofencing.

Clip the dataset to create a subset feature layer

In ArcGIS Pro, use the Clip tool to reduce the dataset to only the geographic area required for field operations and publish the clipped dataset to ArcGIS Online as a new hosted feature layer. In Field Maps Designer, add geofences to the map using the subset feature layer.

Add a filter to the geofence

In Field Maps Designer, apply an attribute filter to limit the features used as geofences based on specific field values or categories. This reduces the number of features the app must process, lowering computational load and improving map loading performance. Refer to Step 7 in ArcGIS Field Maps: Add geofences for instructions.