When I logged in after event start I was surprised to see that 3 explorers who had arrived after event start but before my login didnt bring back any flowers. Ok I thought maybe they arrived too soon after event start and didnt get the loot adjusted.
But now I saw with my own eyes my bro login and play after the hotfix. He had already about 5 explorers back and none had brought back flowers. Their messages were in mailbox after the xmas event conversion message so clearly created after the hotfix. But wait it gets worse: after 5 min another 4 explorers arrived and they also didnt bring any flowers! At that point he had been playing for 15 min completed event quests etc!
What a fail.