I have 3 x 8.2kwh batteries

Using Andrew Miller 3rd party app @Rubikcube it is showing something slight odd on the "Battery 3" - "Capacity Full is 77Ah" whereas other batteries show 172Ah and 164Ah.

Have raised with Givenergy support but got no response. Anyone have any idea if there is any problem with that? ... or with cell voltages etc? I'm not sure what these readings should be!