Energy dashboard - gas consumption issue

I use the gas consumption to aggregate my car charger’s kWh charged and cost. This has worked like a charm for months, but noticed today an anomaly on 4 October.
Case is thay the hourly shown charge energy is way above the possible charge rate of my car for some hours. When I select the sensor showing the exorbitant values, the popup graph shows the right values. How is that even possible?