Review Heatmap [Official Support Thread]

Hello, I recently realized that my Review Heatmap no longer ignores data before the date that I have it set to. It was working fine up until these last few days and I’m not sure if I did something that messed it up. My streak is not affected of course, but the ‘days learned’ and ‘daily average’ stats are far below what they should be since it’s taking data from as far back as 2016 into account, back before I even used Anki (presumably from some older Anking cards’ scheduling). It’s a small detail, not affecting much at all lol but I just wanted to see if there was a way to fix this issue?