Unplugged device at S31 shows as negative Energy at dashboard

Running Core 2025.1.4 with a few Tasmota/Sonoff S31s. When I unplug the load from the S31, the Energy charts show “negative” kWh. Is this normal or is something mis-configured?

Screenshot 2025-02-02 at 21-27-53 Energy – unplugged device from S31

Screenshot 2025-02-02 at 21-29-44 Tasmota Main Menu