A lot has happened in World of Warcraft in the fifteen years since it originally launched, and over that time we’ve come to expect certain things, not just in WoW, but in games in general. As players explore Azeroth as it existed back in 2006 during the WoW Classic beta, they’re reporting bugs – but in many cases, these ‘bugs’ are really just features that are working as intended.
The original animations have also been restored, but WoW’s animation system is tightly coupled with its gameplay code. We had to make changes to both data and code to get the animations back to the 1.12 look. We ran into a few bugs along the way, such as models that should appear prone instead appearing upright, but we were able to correct these with a few fixes.