I spent 25 minutes hunting these little tweeters's small eggs from yesterday's daily quest (the quest was in progress), and Maple Administrator just ignored that and gave me a new quest. Now I see a completed quest above her head but didn't receive the stamp.
If I'm reading this correctly, you got the quests that tells you to collect the eggs yesterday but you turned it up today? If that's the case, it's not a bug, you're just late at it, thats why Maple Admin just gave you a new daily quest
I already realized that's the case. Why not take care of it then? just cancel the previous in progress quest after midnight. I was also surprised that I still had the quest in progress from the last day, but I assumed that if it was in progress it is probably still relevant.