How does Threaded View work?

I am a brand new user of K9 but a very experienced computer user. I have checked Threaded View in the general settings but my emails are not threaded and I don’t see how to change the view. Would appreciate some assistance.

  • Bill

Exactly the same issue.

If many people cannot view emails in threads is this not a serious issue. I am not sure I can use this email client without threads.