Created attachment 1621 [details]
Bad Sorting of emails in any dir
As can be seen in the screenshot, sorting by From/To field is not working: some "p" guy ends up in the middle of "Home" emails
Tried many directories, always got random emails in the middle of big list of emails From/To an identical email address.
You've hidden too much in the screenshot.
through the blur it looks like you're threading messages here. Therefore it's INVALID. That thread is sorted.