What gameplay feature is this bug affecting?
Achievements

What's the issue? Please include any error messages you receive and as much detail as possible.
The achievement "Friend Zone" ("Flirted with the Dorsal Fur male in explore during the February event.
Earned on 2023-02-01 03:06:17" only shows up in the Overview section unter "Recently Earned Achievements" and under no other section.
It should probably either show up in "Events", since it is event related or in "Challenger" like the event-related July achievements (Divine Fate, Heavenly Fate etc.)

Any links relating to this bug? For example, if a particular lion is bugging, what is the link to that lion?
https://www.lioden.com/achievements.php

Any screenshots you can provide us with?
-/-

Please provide us with step by step explanation how this bug happened so we can attempt to replicate it. If it's complex, please include screenshots where possible:
Get the achievement "Friend Zone" and check the different achievement categories for it to show up.