Sunday, Aug 08, 2021 at 12:30
Just reviewed System Requirements:
"Using your phone as a Hotspot to your iPad only provides a data connection and whilst you are in mobile range this can provide location
services but this will not work when offline so this method is not a solution for offline tracking. All iPhones have GPS built in but Wifi only iPads do not have GPS built in and only use online location
services."
Sorry I didn't pick this up properly in my Reply above.
I suspect the OP hotspotted the iPad and took the first trip totally within mobile data coverage, so it worked with location data provided by the phone network, not GPS.
Second trip got outside mobile coverage at Stirling. I suspect that with no position input for a while in the Stirling area the iPad thought it was stationery. When the signal resumed the iPad tracking didn't wake up. (Some iPads do that and there's a setting in Traveller to address it).
Andrew, as Stephen and Warren have said, you need to get a suitable external GPS if you want your setup to work properly outside mobile data coverage.
FollowupID:
915521