Total of bounces and total visit duration differently depending on the breakdown

[cornelyus]

I have been using umami for a bit of time and most recently using utms campaign, content, term to gather information of the traffic I have.

What I noticed is that when I do a breakdown by one of those things, the visit duration and the bounces, the total sum of them, change depending on the breakdown made. Like sometimes double it. Though the Page Views stay very much the same.

When I do a breakdown by browser, device, or country the sums are the same. But when I do by campaign, utmSource or even Path, the totals for visitor, visits, bounces, totaltime are "all over the place".

I tried to understand how a "bounce" is incremented, but couldn't find a final answer.

Am I seeing something wrong?

Thanks in advance