Data not appearing on iOS app

Hi I have tried using two different iPads and two separate power sources. An elite direto with Bluetooth and a Roto in power with ant+. Also a garmin heart rate monitor with ant+. Although all devices connect straight away with the app and I tick their selection no data is actually appearing on the workout screen when in use and therefore the workout is paused also. Can you explain what I’m doing wrong. Thanks

ANT+ is not supported yet on the iOS app, even though they appear on the list of devices. Only BT is supported.