"Sorry, the required sensor is not available" when using zombie walk

I’ve switched phones (from an old Moto G4 to a Samsung Galaxy A30) recently and am struggling to use the zombie walk captcha. When I try to preview it or use it with an alarm, I get the following message: “Sorry, the required sensor is not available”. Is something wrong with the phone or is it something else?

Sorry about that :(… at the moment the CAPTCHA relies on the step counter sensor in the Phone and it depends on the OEM whether they implement it…