Battery discharging to grid

Hi, newbie here. Might be some setting I'm missing but in the small hours of every morning, straight after the battery has charged it exports it all back to the grid. This is wasting a fair amount of money and we're importing more from the grid than we did prior to installation. I don't have a timed export set up, only a discharge for sorting peak hours in the evening. Timed charge between 2-3.30am.

Eco mode is on (but will randomly switch itself off!).

Any ideas?

4.25kw solar, 5.2kwh battery

Egb81 sounds like something is confused with the inverter. Try doing a reset to default settings

Assuming you haven’t configured smart tariffs or enrolled in octopus flux intelligent that might be controlling your battery activity

We're on octopus agile at the moment, this is set up in the system. I'll give a reset a go and see if that cures it. Cheers