Zwift and ‘activity still in progress’

I’ve had this happen a few times now on my Apple TV setup. After booting and then launching the zwift app I get the dialog that there’s an activity still in progress and do I want to save it. All my activities are saved and visible though the companion app or website, so it’s a bit of a head scratcher. Perhaps the local file/s are corrupted?

Did you close Zwift on all your other devices.