Background event system does not work

That's interesting, so it really seems to be clearly related to Fenix 6. So the only solution at the moment is to exclude Fenix 6 from the supported devices list in the manifest and hope that there are no other devices that have the same bug. I wouldn't be too happy if this is the only solution...

As an update, returned my Fenix 6 to the store because of this bug. Got a Fenix 6 Pro instead. Running same code now, and everything works. Background process updates as expected!

@GarminSupport Did somebody had a chance to look into this and verify if there is a problem? With the source code provided run on a Fenix 6 this should be verifiable very fast. As long as i don't know how to handle this the development of my current app is on hold unfortunately...

I have the exact same problem with Fenix 6. I have just a simple background process that retrieves weather data. All my previous watchfaces works with no problem on Fenix5 and with simulator. With Fenix6 it will not trigger the background process, unless I switch to widgets once or when a message/notification is received (like once going to widgets). Fenix5 instead works always with six of my watchfaces with automatic background update, so I don’t think it is in the code. Fenix6 just don’t trigger the background event when timeout is reached.

Hi Travis, thanks for your feedback.

I did as you suggested and removed all apps from my watch. I went over my widget list and did the same (keeping only default ones).

I then programmed a small widget that only does the "basic" things I want to test, registering a background process with a temporal event and a service delegate with my sensor listener logic. But unfortunalety, not a single time my background process was triggered in a 1 hour running time, so there should have been many occasions for the background process to be triggered. Again, in the simulator everything runs as intended.

I am using a Fenix 6 so I would expect memory should not be a problem, especially because I am not running any other app or widget on my watch.

Here is my very quick-and-dirty coding to reproduce it. If you or somebody from the support team could reproduce it maybe on a Fenix 6 to see if this occurs device specific?

using Toybox.WatchUi;
using Toybox.Application;
using Toybox.System;
using Toybox.Time;
using Toybox.Sensor;

(:background)
class BackgroundTestApp extends Application.AppBase {

    function initialize() {
        AppBase.initialize();
    }

    // Return the initial view of your application here
    function getInitialView() {
		
		Background.registerForTemporalEvent(new Time.Duration(5 * 60));
		
		System.println("[getInitialView]: Background process registered");

        return [ new BackgroundTestView() ];
    }

// **************************************************************************************************************
    function getServiceDelegate(){
		return [new MyServiceDelegate()];
    }
    
}

(:background)
class MyServiceDelegate extends System.ServiceDelegate {

	function initialize() {
		System.ServiceDelegate.initialize();
	}
	
    function onTemporalEvent() {

		var options = { 
	    		:period=>4,               	// 4 second sample time
	    		:accelerometer=>{
	        		:enabled=>true,       	// enable the accelerometer
                    :sampleRate => 25,
                }
			};    	

		System.println("[onTemporalEvent]: Background event triggered");
		
		Sensor.registerSensorDataListener(method(:sensorCallback), options);
		System.println("   Sensor listener registered");
    }
    
	function sensorCallback(SensorData)	{
		System.println("Sensor data incoming...");
	}
}

Thanks!