I added my Spotify history and my most recent history dissapeared

I’ve been so excited to add my old Spotify history to see how much I’ve listened to certain songs and artists over the years and I was just now finally able to do it! It was really awesome at first until checked my “past 4 weeks” history and it had changed and was all wrong. The song that was my #1 wasn’t even on there, I’m kinda sad now because I feel like I’m not getting an accurate representation of my listening anymore. Is there anyway to fix this?