no power showing with fluid 2

My setup has been working fine, but now I show cadence but no power.  I thought power was computed from cadence with this setup so I’m puzzled.  I saw a post in the past about this issue.   Using Wahoo cadence/speed with bluetooth.  It pairs fine as usual.  

I solved the problem.  Even though cadence was registering, somehow the magnet placement for my Wahoo pickup was not correct.  I moved the magnet closer to the pickup and power reading returned.  The magnet moved when I transported the bike for a “real world” ride.  A bit of a mystery to me as I thought power was computed from cadence and wheel speed. In any event, happy to have things working again.