Hey! I have made a rocket and I'm trying to add some smoke/fire to it's engines, I have tried to parent both Env_smoketrail and env_smokestack to the engines but none of them are working, I have searched for tutorials for both of them but I can't find them/they are not working. So could someone explain to me how I'm going to sett them up so they will work?

The env_stmokestack works when it's not moving but when the rocket moves the smoke just stops comming.
The env_smoketrail does not work at all.