Anomaly during transition from combustion engine propulsion to pure electric propulsion

[Emanuel]

I would kindly like to ask if anyone has noticed any issues when the car switches from combustion engine propulsion to electric-only propulsion. Specially in the speed range between 60 and 70 km/h (37 to 43 mph), there is a sort of unwanted acceleration just before the combustion engine shuts off. Has anyone else experienced this? At the beginning, the transition was absolutely smooth, but after driving 16,000 km (10,000 miles) I’ve started to notice this anomaly, which only occurs at that speed range, i.e. in that gear. It could be an issue with the automatic transmission or with the electric motor control unit.
Anyway, in two or three months I’ll take it in for 15.000miles maintenance, and I’ll have it checked.