Analytics API - Interval aggregation mismatch

Hi all,
the wrapUpTime metric in /api/v2/analytics/conversations/details/query is wrong when grouping by agent and 15m interval- it’s showing total wrap up across all agents, not per-agent. I check the documentation v3.1, and it’s say should be correct aggregation.

Here is the payload i try:

{
 "interval": "15m",
 "groupBy": ["user", "time"],
 "metrics": ["wrapUpTime"],
 "dateRange": {
 "startDate": "2024-02-29T00:00:00Z",
 "endDate": "2024-02-29T04:00:00Z"
 }
}

It’s happen only in JP1 region, the US region is work ok. There is edge case for this?