I've had my 735Xt for a few weeks now and have only recently got round to using it indoors. With the watch on the Indoor Run activity I'm not seeing any cadence, distance or pace showing. If I have the HRM-Run/Tri on I see Cadence but not with the watch on its own. I've still got my old 920XT and it's behaving as I expect - if I do a march on the spot with proper arm swings it sees pace and cadence (without the HRM). What really did it for me was that I went for a run on the treadmill (had the HRM Run on) and the watch didn't record anything other than HR, time and the running dynamics - no pace or distance. Activity is here: https://connect.garmin.com/modern/activity/1296252501
If I wear both watches at the same time the 920 is recording the metrics but the 735 is showing nothing.
Is the internal accelerometer broken? I've not been getting any distance/ pace on the Strength activity either but I put that down to the watch being different compared to the 920 and it was expected behaviour. Just want to check before I raise a ticket,