Some serious and unfixed bugs do exist. Listed here are the ones I know about and a bit about why they have not yet been fixed.
The fishing mini game is broken due to an old UE4 bug where a ‘capsule component’ will consume mouse clicks and not pass them through, Zoology uses a capsule component for its study zone to detect what a player is looking at and the fishing game requires the player to click on water, this click is swallowed by the capsule and not passed through as it should be..
- Wyvern Eggs in Nests
There is a bug affecting custom ARK maps at the moment where wyvern nests do not spawn eggs, this is not a Zoology bug.