Blizzard Entertainment Quality Assurance representative Arvaanas posted a list of Legion Alpha Known Issues, which is useful for those participating in the testing before they post a bug report.
Legion Alpha Known Issues – Updated 12/2/2015
Below is a list of issues that we are aware of. Please note that this list is not complete and only highlights issues that we believe will have moderate visibility for Alpha participants. I’ll be updating this list regularly, so it’s a good idea to check it out prior to posting in the bug forums.
Re-logging during “Stage 6 – The Purge” for Frost Death Knights will cause a client crash.
Legion Alpha template Warriors and Priests have a significant delay before beginning their Artifact experiences.
The completion page for “Where Respect is Due” is missing description information for the Glass-Extracted Leystone.
Players will not always be placed inside the Murky vehicle when interacting with Murky’s Egg during “Murlocs: The Next Generation” and “Oh, the Clawdacity!”
The War Eagle vehicle has a placeholder ability during “Justice Reigns From Above”
“Felstorm’s Plea” is lacking a quest header.
Opening your map in the Dreamgrove will show a map of the Broken Shore.
The broadcast line for the Hunter Order Hall formation experience can be seen by all nearby players.
The broadcast line for the Warrior Order Hall formation experience can be seen by all nearby players.
Area triggers that check for a players faction do not function when the player is flagged for PvP. — source