VRM dashboard grid, consumption and solar data scaled incorrectly since 7 August

On one of my fleet (258452) I see the following

Note that the VRM dashboard (picture immediately above) shows huge dip in consumption and solar (and same with grid data) while advanced tab / VRM database (top picture) shows no such dip from 7 August onwards. The battery picture is unchanged since 7 August (would not be the case if the dip downwards was real)