Dont know if anyone else has had this problem. In 3rd gear the engine hesitates and judders a bit when putting foot down. It’s been since the hot weather started. Maybe a fuel delivery problem? I remember I had this, but much worse in every gear when I had a Nissan Note and it turned out to be a sensor in the sump. Anyhow, if it gets any worse, I’ll bung the car into the Kia dealers for a diagnostic.