Why do both engines on the arado 234 ignite when one is set on fire

as the title says, why do both engines of the arado 234 ignite if one of them is set on fire, this does not seem very realistic, i would belive you if both engines were right next to eachother but there is a whole fuselage in between the engines, which makes the ignition of the other engine way more strange as it should not happen.

also it seems werid that engine fires on german engines will never go out, no matter how long you wait or if you turn the engine off or something

Sounds like a bug. Make a report in the bug report site.