UHC Leaderboard showing stats for "Teams of 3" instead for "Overall"

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Endpoint "leaderboards", specifically under UHC key, for some reason, showing kills and wins for "Teams of 3" instead for "Overall" (although it is stated "Overall")
path | "kills"
prefix | "Overall"
title | "Kills"
location | "-2554,13,715"

Furthermore, the location is NOT correct, and beyond player's access.

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This is unrelated to this issue specifically, but UHC is one of the modes that lacks weekly and monthly leaderboards like other modes.