Power misreadings (trainer)

Hi there,
For a couple of training days I’m dealing with some inccurancies during training. As you can see from the screenshot, in an any time of the training the power value goes mad though I don’t shift gear or increase or decrease the cadence. This madness may sometimes continue for 5 mins or 45 mins as in screenshot. It demotivates me as you guess… I tried my head unit edge 520 if the problem occurs from the trainerroad software but the 520 also reads the same values as TR software. So it is a problem from my trainer (Elite Qubo Power Mag B+). Have you ever faced this kind of a problem ? What may be your thoughts? Thanks for your opinions. Have nice trainings :slight_smile: