This never happened to me. I have a forerunner 935. Recently got a vivoactive3 and tried it for a few days as the preferred tracker. now I’ve decided to return it. my forerunner as the preferred tracker again, turned the true up off and removed vivoactive3 from the garmin connect. I don’t know if that somehow caused what i’m about to describe.
i went for a walk with my forerunner i the evening. Before I ended the activity it showed about 15000+ steps and 734 active calories [not talking about activity calories]. After i ended the activity, it synced to garmin connect. Then my steps dropped to 9770 and active calories dropped to 447. Both on my watch as well as on garmin app!!!
But the floor count stayed ok...
Anyone experienced something like this??