The curve showing the day to day weight on the 4 weeks and 12 months display, shows wrong weights IF someone else has used your scale. Usually and before the app update, it was possible just to erase the non-relevant weight data from other people eg family members. It’s still possible to erase the wrong data BUT it keeps showing up on the curves (not the 7-day weight curve though).
I can upload screen dumps if needed to demonstate the error