Noted on Aug 29th that my usage started trending upwards and found that the meter is recording errant usage as solar comes online.
As Sense real time meter shows solar production increasing,the power usage starts to increase in parallel fashion. I’ve posted power meter history here.
You should probably start by contacting Support but you could detail your configuration (where the main and solar CTs are) here if you suspect something might have changed (physically) since the erroneous metering started.