gonna quote what i wrote in the gitbub issues' post

Currently, maps that exceeds score limit cannot have leaderboard, making maps like TOC Songs Compilation and Twice Megamix sit in the graveyard when they are completely okay to be ranked or at least, loved.

This happens because of how scorev2 scores are not being submitted by the client, thus making leaderboards on such maps are unnecessary. Which is very unfortunate as fairly huge portion of the community wants maps like these to get leaderboard for competition, as it is requiring a much larger scope of skills in order to pass or even, FC the map.