Blizzard has published WoTLK Classic Gold  the "not a bug list" which covers issues that seem to be a bug but are actually accurate and represent WoW as it was years ago. "The characteristics that is the nature of WoW Classic sometimes invokes different memories for various players, and this results in a number of misperceptions by people who have no idea what is or isn't performing as expected," Blizzard said in the blog post.

One instance of something that could be thought to be a bug but is actually functioning in the way it was intended is how pet aggro functions. The aggro radius is extremely variable, which is exactly how it worked in basic version of WoW. Also, WoW Classic players may observe that quests that are available do not show up with a "!" in the mini-map. this isn't an issue. Furthermore, quests that have lengthy descriptions don't have text wrapping, and that's how they should be. On top of that quest objectives as well as points of buy WOW WoTLK Classic Gold interest don't appear on maps, but this was the way it was in the first WoW.

The complete "not a bug" list below, as composed by Blizzard.

WoW Classic does have some real issues they cover almost all aspects that the game offers. The issue was detailed by Blizzard on a different piece as well as an overview of all the problems that are known to WoW Classic issues here.