Vivoactive 5 not recording speed even though it is connected to cadence and speed sensor on an indoor bike

Hoping someone can help with this. I have a Schwinn 800IC bike which has bluetooth built in for speed and cadence. My vivoactive 5 can find and connect to cadence sensor (in Accessories) but even when this has the status as connected I don't see any data on my indoor bike ride activity? 

I read online that it potentially was caused as I was listening to music on my phone via bluetooth so my vivo would connect to the phone instead of the bike even if it said it was connected. I tried listening to music via a computer to avoid this bluetooth 'overlap' but still no data came through. 

Anyone had this issue before?