I don’t believe its soley Hyundai/Kia as it known to be problematic for other vehicle apps. IMHO its something to do with Kraken Kaluza software when you have a Ohme charger.
Hence why its advisable to use the Ohme App for seamless operation where charging is concerned.
Compatible cars that don’t use a Ohme charger, your better schedualling from the vehicle itself.