Timed Export percentage and Battery Operating range

I have an all in one and in the inverter when i set the timed export percentage to say 20% and lets say the time start and finish range to 16:00 to 20:00. It also changes the Battery options operating range to 20%. I don’t want this to happen i want to manually set and export time and the use the remainder energy left in the battery to power my home until 11:30 when my cheap rate kicks in and the battery then fully charges again. BTW I’m on octopus intelligent go

I have exactly the same problem, it doesn’t make sense for the timed export to change the battery operating range