Drive details doesn't seem to be reporting values for all fields

Hi. I've been looking into more details of recent drives i.e. when preconditioning started etc but not all values seem to be returned i.e.:
Is Auto Conditioning On

Is Preconditioning

Battery Heater

Battery Level

Battery Heater On

Steering Wheel Heater

These all come back with nothing. Not a 0 nor a 1. Nothing

Has there been a change since the introduction of the Fleet API data access?

nb. I do get a return for:

Thanks

David