Tacx Vortex resistance backwards!

I’m hoping someone can help me because I’ve just purchased a Tacx Vortex smart trainer and the resistance is higher going downhill or on flat sections and feels like I’m going uphill, then pedalling uphill is super easy and feels like I’m going downhill.
I’m having the same problem with the Tacx training app as well so it must be something to do with the trainer.
I can’t contact Garmin/Tacx support either because it’s down at the moment.

What speed, and possibly cadence, sensor/s are you using? Are they paired correctly, or might you have them set up or paired in reverse?

There isn’t a speed sensor and everything is built into the trainer so they all pair automatically