Thanks so much for the details and the workout. In this case I know exactly what is going on.
We made a change to improve a bunch of devices and ultimately it will improve most devices, regarding connectivity and a few other things but we knew there was a risk of stuff like this. It seems some specific devices such as your Neo 1 need some special extra code. Temporarily you should be able to press slope and back to ERG to resolve it. If you could start the workout wait 3 seconds and then press slope and ERG and let me know that would help.
It would be the ultimate if you were willing to work with my developer directly. Regardless We will get a fix in place soon.
Ok, I contacted tacx guy to move this forward. I believe we seriously improved our bluetooth code here but there are are a few side effects of this. Hopefully once we resolve these we don’t need to touch this any more.