AutoTools Secure Settings Location Mode when when screen off

Switching the Location Mode to High Accuracy is working fine when starting an app, like in the tutorial. However, I'd like to change the Location Mode when my phone is connected to a certain bluetooth device (my car stereo) and start an app too.
Starting the app - the second step of the task is working fine, however the Location Mode does not change. When I manually run the task or when the phone is on, all is fine. But when the screen is off, the app starts but the Location Mode is still Batery Saving.
Any idea why and if there would be a solution for this?
Thanks!

 

Hi! Thanks for your quick reply. I found (what I think was) the cause of the issue. Originally I had as the first step in my Task a call to another task which was switching the Location Setting. When I removed that step and created a new step with a direct call to the Secure Settings everything was working.
All's working fine now and my life is a bit easier thanks to your app!