Did LFR Undermine yesterday. Won the Semi-Charmed Amulet with a roll of 100. Waited until the timer ran to 0 on the loot roll window and still didn’t receive the neck piece.
Did you ever actually loot the boss’s body? If you don’t (we’ve all been there, I’ve forgotten) then you will not receive the item automatically or in the mail since technically you didn’t loot it.
I’m confident I did loot because I wanted the crests but thanks for that reminder. Didn’t know that was a requirement for the future.
Similar issue just happened to me.
Was in LFR Wing 1 of Undermine. Killed Rik Reverb. He dropped Sash of the Fierce Diva, a mail waist. As an Evoker, I had the current high need roll. Three people had not rolled and had already left the raid: 1 Paladin and 2 Priests, or 2 Paladins and 1 Priest. Neither Paladins nor Priests could have rolled need on a mail waist.
My queue for LFR Wing 2 popped. The Enter Raid timer would have run out before the loot timer expired, and in the past any uncollected loot would have been mailed to me once all the rolling was done or timed out. In this case, my item never came in the mail, not even over an hour later.