Blackwing Descent unable to get 6/6 to unlock heroic mode

[shadowjeff]

WoW Freakz link: https://www.wow-freakz.com/npc_finder.php?npc=41570&name=magmaw
Bug description: able to kill all bosses but magmaw, he despawns when you attack him, also after you kill 5 out of the 6 bosses, the counter of the amount of bosses you killed stays at 4/6 (you can check that on the calendar how many of the bosses you have killed in said raid)
Proof: wanted to record proof and i sort of have. but if you leave the raid and try to re,enter the raid you get infinite loading screen and you have to force quit the game.
vid for the infinite loading screen: https://youtu.be/1QTC6SYTjB8

things i have tried to make it work: unloading addons and removing them (i backed them up so i didnt lose settings ect.) deleted the cache to see if that works. tried the raid on a second character to see if it was just a one off bug (forgot to record it)

possible fix: remove the requirement of doing normal first before you can do heroic (same way pandaria works)

EDIT: since the raids did reset i have recorded the whole instance so you can see what happens and what goes wrong, (only magmaw is bugged to the point you just cant kill it)

Link: https://youtu.be/fy6m-_meZm4

[Barnacle]

Confirmed, Magmaw has ome weird combat problems

XXX Barney