Bug

A bug is an error (in performance) or a flaw (in design) in a game which prevents it from working as intended. This includes things such as graphical glitches, players' input being processed wrong, or other features not working properly. Bugs are often fixed in game updates.

For a list of current known bugs, see Category:Bugs.

An anomaly, on the other hand, is when it isn't explicitly known how a feature is intended to work, but it's inconsistent with the rest of the game. For example, Empathy triggers on missed attack skills, but Vigorous Spirit does not; neither one mentions if it's supposed to.

For a list of current known anomalies, see List of skill anomalies.