Losing resistance after app auto pauses

For the majority of time when I start cycling after the training app has auto paused the slope resistance no longer works. I can only get the resistance back on by forcing the app closed and restarting. This is making training useless.

Sometimes when the app has auto paused it will not resume even when i see the cadence and watts are greater then 0 in the background.

I am see watts and cadence fine so nothing is losing signal. I am using the latest tacx training app software and vortex firmware and have the garmin cadence sensor that was bundled with my edge 810. The vortex is conncted via bluetooth, hr and cadence connected via ant+. Using galaxy tab S2

Any help appreciated