Unable to find (Kill) Siegemaster Immelhoof

Hi Everyone,I have recently started on my journey for Aurora, and the pre-collection requires 4 different achievements.

Of these, the Cin Business Collection requires Stolen Flank Steak which apparently drops from Siegemaster Immelhoof.

I have never seen him, and unlike the other two towns Noran's Homestead doesn't seem to be getting attacked. (There is no Message on screen atleast)There is however an event which says clear out the remaining white mantle forces and its most defiantly bugged because this has been stuck at Zero for 2 days now.

Does this event really have anything to do with whether the Boss Spawns or not ?

If Yes, is there anything I can do to go to a new map instance ? If yes, How may I do it ? If Not, when will the map reset ! If I can know the exact time, they I will stay there to finish it off.

If I have been unnecessarily thinking too much and the boss doesn't have anything to do with that event, could someone help me find him ? I stayed near the Centaran fields, but did not find him

Thanks a lot for your time

I don't think it has a message on screen, IIRC he gets there after pres donehttps://wiki.guildwars2.com/wiki/Siegemaster_Immelhoof

https://imgur.com/a/pHpuheV

I am unable to post the image directly.The even chain seems to be stuck here

That bug has been around for as long as Lake Doric.

Thats awesome.

So can you please suggest a workaround ?How do ppl kill the Siege Master for the Aurora Collection ?

Thanks a lot