Hi! My new TACX FLUX S runs a bit strange.
On flats and moderate <2% grades it seems that the resistance equals the grade in game, so it seems to work fine.
Once I hit 6% or higher grades i noticed the resistance on my trainer would let up and come back, let up and come back. My power in game was going from 3.0 w/kg to 1.5 w/kg and then back up when the resistance returned.
I have the trainer paired with the Zwift Companion app on my iphone via Bluetooth. Not sure if I am doing something wrong.
Any help would be appreciated.