Plugged wahoo key in, not measuring

plugged my Wahoo key in & get the message “this accessory is not supported by this Ipad”

started receiving a couple weeks ago. This stops my heart rate from being received. M road bike has a combo powermeter & cadence

 I expect I won’t receive cadence via Bluetooth whan I use my cross bike in a week or so.

Still getting the Bluetooth ANT insignia (+t the circles) on the pairing screen.

The Wahoo key has not worked very well after the last couple of iOS updates. I have been suggesting the CABLE lately since I have not heard any issues with it.