Azerothcore-wotlk: [Dungeon][Wotlk] The Oculus (Heroic) - 3rd Boss Mage-Lord Urom sometimes does not spawn [$50 awarded]

[andoys]

The Oculus (Heroic) - 3rd Boss Mage-Lord Urom sometimes does not spawn

SMALL DESCRIPTION:

The Oculus (Heroic) - 3rd Boss Mage-Lord Urom sometimes does not spawn after killing the three pack of mobs.

EXPECTED BLIZZLIKE BEHAVIOUR:

It should work like this: https://youtu.be/f6KLV6P9LlY?t=190

CURRENT BEHAVIOUR:

Dungeon: The Oculus (Heroic)
Boss: (3rd) Boss Mage-Lord Urom sometimes does not spaw after killing the three pack of mobs.
He should spawn somewhere in the center.

STEPS TO REPRODUCE THE PROBLEM:

1. Start a group, or gm mode and kill 1st and 2nd boss in The Oculus (Heroic)
2. Start the 3rd boss encounter - Mage-Lord Urom
3. Kill the group of mobs ( Animals, Elements, Monsters)
4. Mage-Lord Urom has 50 percent chance to spawn after killing the 3 group of mobs.
5. Try another clean Oculus run and repeat

EXTRA NOTES:

Trinitycore had the same problem before.

BRANCH(ES):

master

AC HASH/COMMIT:

AzerothCore rev. 97e65bd

OPERATING SYSTEM:

Ubuntu 16/18

MODULES:

OTHER CUSTOMIZATIONS:

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The $50 bounty on this issue has been claimed at Bountysource.

[Naxxramas-Server]

I can confirm it , but this bug not appear all time , approximately 1/5 time

[shuradumau]

I can confirm too, the bug appears 3/5 here

[solidmaxtor]

Yeah I confirm this 3/5 aprox

[andoys]

I retested like 10 times. 6/10. Yeah theres a bug somewhere

[BarbzYHOOL]

Can this be related to the order in which mobs die? (just spitting an idea)

[andoys]

Can this be related to the order in which mobs die? (just spitting an idea)

maybe. but in retail servers it didn't matter what order the mobs die, boss will still spawn in the end

[BarbzYHOOL]

well if some of you can try to find out how to 100% reproduce the issue, it would help

[andoys]

Added $5 bounty
Edit; someone added $25.
$30 total

[FrancescoBorzi]

it's currently $50 : https://www.bountysource.com/issues/75283788-dungeon-wotlk-the-oculus-heroic-3rd-boss-mage-lord-urom-sometimes-does-not-spawn?utm_campaign=plugin&utm_content=tracker%2F40032087&utm_medium=issues&utm_source=github

thanks to our backers @spinzaku @heyaapl and @solidmaxtor