The intro scenario is bugged on the cannons and you cannot progress the story.
It has been this way since 9.1.5, I have tried it twice, and I have seen a thread confirming this is not just a ‘me’ issue.
So, they respond with the usual automated "Hello Adventurer!
With our ticket queues being extremely busy, and in the interest of saving you some time, we are sending you this automated reply with some resources that should help you with your quest issue.
Please try out the following steps:"
nonsense, as in abandon and re-take… etc. The obvious stuff that everyone tries.
I was able to shoot with the cannon on a very specific spot and sometimes had to roll the cannon around to make it happen again… it took a long time though.
Same way the Battle of Gilneas in the Worgen storyline was bugged forever, and that was mandatory for them to access the rest of the game (unless you just got summoned out of there).
Stormheim is legacy content and isn’t mandatory for leveling so it’s low priority I guess. If you really insist on doing Stormheim right now just play around with the cannons until it hopefully works, I see people manage to get through somehow. Can’t be as bad as fighting Cho’gall in Feralas for 30 minutes.
Has been pretty much from Legion, day-1… add-on’s are the problem, and I mean ALL of them.
Like most parts of the game; they work perfectly without them, but players ‘need’ them to play more efficiently.
I suppose one can expect this from such a tiny little company. After all what resources can three people in a shed muster? It’s so feeble their attitude of ‘everything that isn’t the latest content patch is utterly irrelevant’, which is propped up by players-at-large because ‘that’s just what Blizzard do’ unquestioned.