telport to KLZ, the client crashes

[iyweb]

Describe the bug
Turn on GM mode, telport to KLZ will cause the client to crash

To Reproduce
Steps to reproduce the behavior:

1: .gm on
2: .go c 81435
The player is stuck
or
1: .gm on
2: enter the KLZ
3: .die
4: ghost status Enter KLZ

Screenshots

Branch
Master

Eluna
NO

Enabled
Script
N/A

Crash
N/A

Additional context
High priority

HASH/COMMIT:
c68aba0

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[talamortis]

who is KLZ? - last boss in nax?

[iyweb]

who is KLZ? - last boss in nax?

instance karazhan
Open the GM mode and telport to karazan's NPC. The player will be stuck and the client will crash.
example: .go c 81435
Sorry, my English is very bad.

[PadreWoW]

who is KLZ? - last boss in nax?

instance karazhan
Open the GM mode and telport to karazan's NPC. The player will be stuck and the client will crash.
example: .go c 81435
Sorry, my English is very bad.

What vision distance did you set in config?

[iyweb]

who is KLZ? - last boss in nax?

instance karazhan
Open the GM mode and telport to karazan's NPC. The player will be stuck and the client will crash.
example: .go c 81435
Sorry, my English is very bad.

What vision distance did you set in config?

It's all default values, and I haven't made any changes

[PadreWoW]

This possibly could help:
cmangos/mangos-tbc@1331cff

But this fix for cmangos, and i can not convert it for our core

[PadreWoW]

Can Anyone help?

[PadreWoW]

There is no crash if Visibility.Distance.Instances = 150 or lower

[PadreWoW]

Any news?