I recently updated to the latest firmware. This was just after adding solar panels to the system. I had Signature Solar assist with the update after adding solar. They also assisted w/ updating the LCD update, but that failed. Ever since that update my system is showing Export even though my 18kPV in Off Grid, Zero Export, fast zero export.
I have a new support ticket w/ Signature Solar, but wanted to share this experience and see if anyone else has had this happen.