Cadence CRAZINESS!

Hi, I have a Cyclops Magnus trainer and everything is connected and working well. EXCEPT on every ride my cadence goes up to 150+ and I know my rpms are not that high EVER. The range in my power/cadence/heart rate profile on companion shows a range from 80-166. I can’t really pin it down.Any ideas on how to fix this???
Thank you

Did you get any help? I have a similar problem. My cadence swings between 57 and 117 even though my legs are moving at the same rate.