Cadence staying in the 60 rpm range

I know there are several threads on this but not sure if it’s been fully answered. I have a Kinetic Kurt T-6100 trainer and I have done the Fit App and FTP testing. My Kinetic Fit app shows a wide range for cadence but on Zwift I can’t get out of the 60 RPM range. I am connected via Bluetooth to an iPhone. Any suggestions? Thanks!