Derivative sensor shows kWh/s even though time unit is hour

Sorry I got another energy related issue. I am deriving a power value from an energy sensor with units kWh. Ideally the sensor output is kW.

However, the units show as kWh/s and this, although it’s definitely configured as unit “hour”:



At the very least, the units should be kWh/h … but as I said, the right unit is really kW.

Why is this the case?