Stair Climb Monitoring while 3rd Party fitness app is engaged

Hello,

I'm just trying to confirm an issue i believe I'm having.

I have the Apple Nike Watch (Series 2), and have been running stairs with it utilising 2 apps - Strava and Fitiv to track my workout. I've also been taking my iPhone 7 along to try and track the stairs climbed, but I have found that the Stairs Climbed tracking does not count stairs while the 3rd party apps are tracking a workout on my watch.

Can you confirm that the the barometer is disengaged during 3rd party work outs? I've tried turning off bluetooth in order to test tracking watch/phone separately, but still no stairs counted.

The stair tracking IS working normally when a 3rd party app workout is not started.

Cheers,