Realm: Netherwing Goblin Rocket Launcher does not work in the arena

[bloodline1x9]

 

 

This is an engineering device. I read the comments on wowhead, it should work in the arena. The gnome device in the arena does not work, but the goblin rocket launcher should work. But it cannot be used there on this server.

[Matick]

Disabled on purpose along with other engi items starting from S3

[bloodline1x9]

 

 

This should not activate combat. But after using it, I enter the combat mode

[Matik]

Why would it not activate combat...?
It deals damage