I moved an email from the spam folder to the inbox and it disappeared
When moving an email from the Junk/Spam folder (which is somewhere it should not have gone anyway) to the inbox, the email disappeared. - It was not deleted - At least, not by me. - and it is thread material so it needs to go back to inbox.
This happened to me, too! First of all, the email was from someone in my contacts list and it still went into Spam. When I clicked on "Not Spam" the email didn't go to my inbox -- it disappeared completely. How is it that this worked before and now is broken? Unbelievable.
Robert Chambers commented
I have had the same issue twice now. I had valid emails the in Spam folder that I flagged as "Not Spam." The emails just disappeared, nowhere to be found.