Problem Reporting asks me for password of other user to view System problems

I open Problem Reporting, click on the “System” button, then I get a dialog Authentication Required, which is fine. The only issue is that instead of asking me for my password, it asks me for the password of another user.
My own user is part of the wheel group just fine and has sudo access working, it has ID 1000.
The other user is called indeed admin and has ID 499, I used it to initially setup the laptop (automatically), but it has else nothing special.
I can’t find in Problem Reporting any way to configure this behavior. Any clue what could be happening?

I realize that “Problem Reporting” is actually gnome-abrt so it’s perhaps relevant that my desktop is Cinnamon.