Crown rot was a problem in autumn.
GLOW MONSTER, an Australian cultivar, all gone.
A clump of JUST CELEBRATE deaded - but I had a saviour clump but it tried to rot as well but I have saved 4 of its fans (touch wood).
One of my waxy seedlings out of Milanese Mango rotted but - fingers crossed - one fan has made it through.
Edit next day. Added a photo of the waxy one.