Why are you dropping the report from your classic to modern ?? I really like knowing what I did for the year month and total. Come on really!! And whats up with weight only going back 12 months on modern?? This might be enough to leave the garmin family after all these years!!
All past weight data is visible in 12 month blocks in the weight full page view - select the "12 Months" tab and then use the "<" next to the "Today" button (Left hand side of page). This lets you go back 12 months at a time as far as your data allows.