Min/max functionality using inside groups feature

Can you explain how the inside groups feature is supposed to work. Once checked it displays a list of all the columns and then I check the columns i want to group by but when I apply the action it only returns a single row with the lowest value. I would expect it to return the lowest value for each unique grouping of column values I selected from the list.

Just to make sure I’m on the same page – what’s the action in question?

It works correctly for me (see screenshot below). What am I missing? Can you send the project with wrong behavior to our support email?